Tips to Prevent Lead Poisoning

Prevention Tips

Lead poisoning is entirely preventable. The key is stopping children from coming into contact with lead and treating children who have been poisoned by lead.

The goal is to prevent lead exposure to children before they are harmed. There are many ways parents can reduce a child’s exposure to lead. The key is stopping children from coming into contact with lead. Lead hazards in a child’s environment must be identified and controlled or removed safely.

How are children exposed to lead?

Lead-based paint and lead contaminated dust are the main sources of exposure for lead in U.S. children. Lead-based paints were banned for use in housing in 1978. All houses built before 1978 are likely to contain some lead-based paint. However, it is the deterioration of this paint that causes a problem. Approximately 24 million housing units have deteriorated leaded paint and elevated levels of lead-contaminated house dust. More than 4 million of these dwellings are homes to one or more young children.

Who is at risk?

All children under the age of 6 years old are at risk because they are growing so rapidly and because they tend to put their hands or other objects, which may be contaminated with lead dust, into their mouths.

However, children living at or below the poverty line who live in older housing are at greatest risk. Additionally, children of some racial and ethnic groups and those living in older housing are disproportionately affected by lead.

What can be done to prevent exposure to lead?

It is important to determine the construction year of the house or the dwelling where your child may spend a large amount of time (e.g., grandparents or daycare). In housing built before 1978, assume that the paint has lead unless tests show otherwise.

• Talk to your state or local health department about testing paint and dust from your home for lead.
• Make sure your child does not have access to peeling paint or chewable surfaces painted with lead-based paint.
• Pregnant women and children should not be present in housing built before 1978 that is undergoing renovation. They should not participate in activities that disturb old paint or in cleaning up paint debris after work is completed.
• Create barriers between living/play areas and lead sources. Until environmental clean-up is completed, parents should clean and isolate all sources of lead. They should close and lock doors to keep children away from chipping or peeling paint on walls. You can also apply temporary barriers such as contact paper or duct tape, to cover holes in walls or to block children’s access to other sources of lead.
• Regularly wash children’s hands and toys. Hands and toys can become contaminated from household dust or exterior soil. Both are known lead sources.
• Regularly wet-mop floors and wet-wipe window components. Because household dust is a major source of lead, parents should wet-mop floors and wet-wipe horizontal surfaces every 2-3 weeks. Windowsills and wells can contain high levels of leaded dust. They should be kept clean. If feasible, windows should be shut to prevent abrasion of painted surfaces or opened from the top sash.
• Prevent children from playing in bare soil; if possible, provide them with sandboxes. Parents should plant grass on areas of bare soil or cover the soil with grass seed, mulch, or wood chips, if possible. Until the bare soil is covered, parents should move play areas away from bare soil and away from the sides of the house. If using a sandbox, parents should also cover the box when not in use to prevent cats from using it as a litter box. That will help protect children from exposure to animal waste.

To further reduce a child’s exposure from non-residential paint sources:

• avoid using traditional home remedies and cosmetics that may contain lead;
• avoid eating candies imported from Mexico;
• avoid using containers, cookware, or tableware to store or cook foods or liquids that are not shown to be lead free;
• remove recalled toys and toy jewelry immediately from children. Check Lead Recalls lists.
• use only cold water from the tap for drinking, cooking, and for making baby formula (Hot water is more likely to contain higher levels of lead. Most of the lead in household water usually comes from the plumbing in your house, not from the local water supply.);
• shower and change clothes after finishing a task that involves working with lead-based products such as stain glass work, bullet making, or using a firing range.

CDC

Tips to Prevent Carbon Monoxide Poisoning

You Can Prevent Carbon Monoxide Exposure:

• Do have your heating system, water heater and any other gas, oil, or coal burning appliances serviced by a qualified technician every year.
• Do install a battery-operated CO detector in your home and check or replace the battery when you change the time on your clocks each spring and fall. If the detector sounds leave your home immediately and call 911.
• Do seek prompt medical attention if you suspect CO poisoning and are feeling dizzy, light-headed, or nauseous.
• Don't use a generator, charcoal grill, camp stove, or other gasoline or charcoal-burning device inside your home, basement, or garage or near a window.
• Don't run a car or truck inside a garage attached to your house, even if you leave the door open.
• Don't burn anything in a stove or fireplace that isn't vented.
• Don't heat your house with a gas oven.

CDC

Some Allergy Sufferers Can Skip the Sneezing Season

SATURDAY, March 27 (HealthDay News) — People who sneeze and wheeze all spring long may be making some common mistakes that make it difficult for them to keep their allergies under control, according to the American College of Allergy, Asthma and Immunology.

Before the allergy season kicks into high gear, consider these tips to prevent symptoms:

• Don't assume you know exactly what you are allergic to. More than two-thirds of people who think their allergies only occur during the spring season actually have year-round allergies. An allergist can pinpoint the source of your allergic reaction and recommend the right treatment.
• Don't buy over-the-counter medications that don't alleviate allergy symptoms. Consult an allergist to determine which treatment options are best for you. Immunotherapy using nasal spray or shots may even cure allergies permanently.
• Don't wait until symptoms start to take allergy medications. Before the spring allergy season starts, begin taking a medication that's worked for you in the past.
• Take steps to avoid allergy triggers. Experts suggest that if you are allergic to pollen, keep your windows closed, take a shower after being outside and avoid going out in the middle of the day when pollen counts are highest.
• If raw or fresh fruits or other foods aggravate your allergy symptoms — making you sniffle and sneeze and your mouth, lips and throat get itchy — you may have oral allergy syndrome. This condition affects about one-third of seasonal allergy sufferers. While cooking or peeling these foods may help, it is wise to consult an allergist.

American College of Allergy, Asthma and Immunology, news release, March 16, 2010

MedlinePlus

Gastric Cancer

Gastric cancer is a disease in which malignant (cancer) cells form in the lining of the stomach.

The stomach is a J-shaped organ in the upper abdomen. It is part of the digestive system, which processes nutrients (vitamins, minerals, carbohydrates, fats, proteins, and water) in foods that are eaten and helps pass waste material out of the body. Food moves from the throat to the stomach through a hollow, muscular tube called the esophagus. After leaving the stomach, partly-digested food passes into the small intestine and then into the large intestine.

The wall of the stomach is made up of 3 layers of tissue: the mucosal (innermost) layer, the muscularis (middle) layer, and the serosal (outermost) layer. Gastric cancer begins in the cells lining the mucosal layer and spreads through the outer layers as it grows.

Stromal tumors of the stomach begin in supporting connective tissue and are treated differently from gastric cancer.

Age, diet, and stomach disease can affect the risk of developing gastric cancer.

Anything that increases your risk of getting a disease is called a risk factor. Having a risk factor does not mean that you will get cancer; not having risk factors doesn't mean that you will not get cancer. People who think they may be at risk should discuss this with their doctor. Risk factors for gastric cancer include the following:

• 
  Having any of the following medical conditions:

• • 
    Helicobacter pylori (H. pylori) infection of the stomach.
  • 
    Chronic gastritis (inflammation of the stomach).
  • 
    Pernicious anemia.
  • 
    Intestinal metaplasia (a condition in which the normal stomach lining is replaced with the cells that line the intestines).
  • 
    Familial adenomatous polyposis (FAP) or gastric polyps.

• 
  Eating a diet high in salted, smoked foods and low in fruits and vegetables.
• 
  Eating foods that have not been prepared or stored properly.
• 
  Being older or male.
• 
  Smoking cigarettes.
• 
  Having a mother, father, sister, or brother who has had stomach cancer.

Possible signs of gastric cancer include indigestion and stomach discomfort or pain.

These and other symptoms may be caused by gastric cancer. Other conditions may cause the same symptoms.

In the early stages of gastric cancer, the following symptoms may occur:

• 
  Indigestion and stomach discomfort.
• 
  A bloated feeling after eating.
• 
  Mild nausea.
• 
  Loss of appetite.
• 
  Heartburn.

In more advanced stages of gastric cancer, the following symptoms may occur:

• 
  Blood in the stool.

• 
  Vomiting.

• 
  Weight loss for no known reason.
• 
  Stomach pain.
• 
  Jaundice (yellowing of eyes and skin).
• 
  Ascites (build-up of fluid in the abdomen).
• 
  Trouble swallowing.

A doctor should be consulted if any of these problems occur.

Tests that examine the stomach and esophagus are used to detect (find) and diagnose gastric cancer.

The following tests and procedures may be used:

• 
  Physical exam and history: An exam of the body to check general signs of health, including checking for signs of disease, such as lumps or anything else that seems unusual. A history of the patient’s health habits and past illnesses and treatments will also be taken.
• 
  Blood chemistry studies: A procedure in which a blood sample is checked to measure the amounts of certain substances released into the blood by organs and tissues in the body. An unusual (higher or lower than normal) amount of a substance can be a sign of disease in the organ or tissue that produces it.
• 
  Complete blood count (CBC): A procedure in which a sample of blood is drawn and checked for the following:

• • 
    The number of red blood cells, white blood cells, and platelets.
  • 
    The amount of hemoglobin (the protein that carries oxygen) in the red blood cells.
  • 
    The portion of the sample made up of red blood cells.

• 
  Upper endoscopy: A procedure to look inside the esophagus, stomach, and duodenum (first part of the small intestine) to check for abnormal areas. An endoscope (a thin, lighted tube) is passed through the mouth and down the throat into the esophagus.
• 
  Fecal occult blood test: A test to check stool (solid waste) for blood that can only be seen with a microscope. Small samples of stool are placed on special cards and returned to the doctor or laboratory for testing.
• 
  Barium swallow: A series of x-rays of the esophagus and stomach. The patient drinks a liquid that contains barium (a silver-white metallic compound). The liquid coats the esophagus and stomach, and x-rays are taken. This procedure is also called an upper GI series.
• 
  Biopsy: The removal of cells or tissues so they can be viewed under a microscope to check for signs of cancer. A biopsy of the stomach is usually done during the endoscopy.
• 
  CT scan (CAT scan): A procedure that makes a series of detailed pictures of areas inside the body, taken from different angles. The pictures are made by a computer linked to an x-ray machine. A dye may be injected into a vein or swallowed to help the organs or tissues show up more clearly. This procedure is also called computed tomography, computerized tomography, or computerized axial tomography.

Certain factors affect prognosis (chance of recovery) and treatment options.

The prognosis (chance of recovery) and treatment options depend on the following:

• 
  The stage and extent of the cancer (whether it is in the stomach only or has spread to lymph nodes or other places in the body).
• 
  The patient’s general health.

When gastric cancer is found very early, there is a better chance of recovery. Gastric cancer is often in an advanced stage when it is diagnosed. At later stages, gastric cancer can be treated but rarely can be cured. Taking part in one of the clinical trials being done to improve treatment should be considered.

National Cancer Institute

Gallbladder Cancer

Gallbladder cancer is a disease in which malignant (cancer) cells form in the tissues of the gallbladder.

Gallbladder cancer is a rare disease in which malignant (cancer) cells are found in the tissues of the gallbladder. The gallbladder is a pear-shaped organ that lies just under the liver in the upper abdomen. The gallbladder stores bile, a fluid made by the liver to digest fat. When food is being broken down in the stomach and intestines, bile is released from the gallbladder through a tube called the common bile duct, which connects the gallbladder and liver to the first part of the small intestine.

The wall of the gallbladder has 3 main layers of tissue.

• 
  Mucosal (innermost) layer.
• 
  Muscularis (middle, muscle) layer.
• 
  Serosal (outer) layer.

Between these layers is supporting connective tissue. Primary gallbladder cancer starts in the innermost layer and spreads through the outer layers as it grows.

Being female can increase the risk of developing gallbladder cancer.

Anything that increases your chance of getting a disease is called a risk factor. Risk factors for gallbladder cancer include the following:

• 
  Being female.
• 
  Being Native American.

Possible signs of gallbladder cancer include jaundice, pain, and fever.

These and other symptoms may be caused by gallbladder cancer. Other conditions may cause the same symptoms. A doctor should be consulted if any of the following problems occur:

• 
  Jaundice (yellowing of the skin and whites of the eyes).
• 
  Pain above the stomach.
• 
  Fever.

• 
  Nausea and vomiting.

• 
  Bloating.
• 
  Lumps in the abdomen.

Gallbladder cancer is difficult to detect (find) and diagnose early.

Gallbladder cancer is difficult to detect and diagnose for the following reasons:

• 
  There aren't any noticeable signs or symptoms in the early stages of gallbladder cancer.
• 
  The symptoms of gallbladder cancer, when present, are like the symptoms of many other illnesses.
• 
  The gallbladder is hidden behind the liver.

Gallbladder cancer is sometimes found when the gallbladder is removed for other reasons. Patients with gallstones rarely develop gallbladder cancer.

Tests that examine the gallbladder and nearby organs are used to detect (find), diagnose, and stage gallbladder cancer.

Procedures that create pictures of the gallbladder and the area around it help diagnose gallbladder cancer and show how far the cancer has spread. The process used to find out if cancer cells have spread within and around the gallbladder is called staging.

In order to plan treatment, it is important to know if the gallbladder cancer can be removed by surgery. Tests and procedures to detect, diagnose, and stage gallbladder cancer are usually done at the same time. The following tests and procedures may be used:

• 
  Physical exam and history: An exam of the body to check general signs of health, including checking for signs of disease, such as lumps or anything else that seems unusual. A history of the patient’s health habits and past illnesses and treatments will also be taken.
• 
  Ultrasound exam: A procedure in which high-energy sound waves (ultrasound) are bounced off internal tissues or organs and make echoes. The echoes form a picture of body tissues called a sonogram. An abdominal ultrasound is done to diagnose gallbladder cancer.
• 
  Liver function tests: A procedure in which a blood sample is checked to measure the amounts of certain substances released into the blood by the liver. A higher than normal amount of a substance can be a sign of liver disease that may be caused by gallbladder cancer.
• 
  Carcinoembryonic antigen (CEA) assay: A test that measures the level of CEA in the blood. CEA is released into the bloodstream from both cancer cells and normal cells. When found in higher than normal amounts, it can be a sign of gallbladder cancer or other conditions.
• 
  CA 19-9 assay: A test that measures the level of CA 19-9 in the blood. CA 19-9 is released into the bloodstream from both cancer cells and normal cells. When found in higher than normal amounts, it can be a sign of gallbladder cancer or other conditions.
• 
  CT scan (CAT scan): A procedure that makes a series of detailed pictures of areas inside the body, taken from different angles. The pictures are made by a computer linked to an x-ray machine. A dye may be injected into a vein or swallowed to help the organs or tissues show up more clearly. This procedure is also called computed tomography, computerized tomography, or computerized axial tomography.
• 
  Blood chemistry studies: A procedure in which a blood sample is checked to measure the amounts of certain substances released into the blood by organs and tissues in the body. An unusual (higher or lower than normal) amount of a substance can be a sign of disease in the organ or tissue that produces it.
• 
  Chest x-ray: An x-ray of the organs and bones inside the chest. An x-ray is a type of energy beam that can go through the body and onto film, making a picture of areas inside the body.
• 
  MRI (magnetic resonance imaging): A procedure that uses a magnet, radio waves, and a computer to make a series of detailed pictures of areas inside the body. This procedure is also called nuclear magnetic resonance imaging (NMRI). A dye may be injected into the gallbladder area so the ducts (tubes) that carry bile from the liver to the gallbladder and from the gallbladder to the small intestine will show up better in the image. This procedure is called MRCP (magnetic resonance cholangiopancreatography). To create detailed pictures of blood vessels near the gallbladder, the dye is injected into a vein. This procedure is called MRA (magnetic resonance angiography).
• 
  ERCP (endoscopic retrograde cholangiopancreatography): A procedure used to x-ray the ducts (tubes) that carry bile from the liver to the gallbladder and from the gallbladder to the small intestine. Sometimes gallbladder cancer causes these ducts to narrow and block or slow the flow of bile, causing jaundice. An endoscope (a thin, lighted tube) is passed through the mouth, esophagus, and stomach into the first part of the small intestine. A catheter (a smaller tube) is then inserted through the endoscope into the bile ducts. A dye is injected through the catheter into the ducts and an x-ray is taken. If the ducts are blocked by a tumor, a fine tube may be inserted into the duct to unblock it. This tube (or stent) may be left in place to keep the duct open. Tissue samples may also be taken.
• 
  Biopsy: The removal of cells or tissues so they can be viewed under a microscope by a pathologist to check for signs of cancer. The biopsy may be done after surgery to remove the tumor. If the tumor clearly cannot be removed by surgery, the biopsy may be done using a fine needle to remove cells from the tumor.
• 
  Laparoscopy: A surgical procedure to look at the organs inside the abdomen to check for signs of disease. Small incisions (cuts) are made in the wall of the abdomen and a laparoscope (a thin, lighted tube) is inserted into one of the incisions. Other instruments may be inserted through the same or other incisions to perform procedures such as removing organs or taking tissue samples for biopsy. The laparoscopy helps to determine if the cancer is within the gallbladder only or has spread to nearby tissues and if it can be removed by surgery.
• 
  PTC (percutaneous transhepatic cholangiography): A procedure used to x-ray the liver and bile ducts. A thin needle is inserted through the skin below the ribs and into the liver. Dye is injected into the liver or bile ducts and an x-ray is taken. If a blockage is found, a thin, flexible tube called a stent is sometimes left in the liver to drain bile into the small intestine or a collection bag outside the body.

Certain factors affect the prognosis (chance of recovery) and treatment options.

The prognosis (chance of recovery) and treatment options depend on the following:

• 
  The stage of the cancer (whether the cancer has spread from the gallbladder to other places in the body).
• 
  Whether the cancer can be completely removed by surgery.
• 
  The type of gallbladder cancer (how the cancer cell looks under a microscope).
• 
  Whether the cancer has just been diagnosed or has recurred (come back).

Treatment may also depend on the age and general health of the patient and whether the cancer is causing symptoms.

Gallbladder cancer can be cured only if it is found before it has spread, when it can be removed by surgery. If the cancer has spread, palliative treatment can improve the patient's quality of life by controlling the symptoms and complications of this disease.

Taking part in one of the clinical trials being done to improve treatment should be considered.

National Cancer Institute

Retinoblastoma

Retinoblastoma is a disease in which malignant (cancer) cells form in the tissues of the retina.

The retina is the nerve tissue that lines the inside of the back of the eye. The retina senses light and sends images to the brain by way of the optic nerve.

Although retinoblastoma may occur at any age, it usually occurs in children younger than 5 years of age. The tumor may be in one eye or in both eyes. Retinoblastoma rarely spreads from the eye to nearby tissue or other parts of the body. Retinoblastoma is usually found in only one eye and can usually be cured.

Retinoblastoma is sometimes caused by a gene mutation passed from the parent to the child.

Retinoblastoma is sometimes inherited (passed from the parent to the child). Retinoblastoma that is caused by an inherited gene mutation is called hereditary retinoblastoma. It usually occurs at a younger age than retinoblastoma that is not inherited. Retinoblastoma that occurs in only one eye is usually not inherited. Retinoblastoma that occurs in both eyes is always inherited. When hereditary retinoblastoma first occurs in only one eye, there is a chance it will develop later in the other eye. After diagnosis of retinoblastoma in one eye, regular follow-up exams of the healthy eye should be done every 2 to 4 months for at least 28 months. After treatment for retinoblastoma is finished, it is important that follow-up exams continue until the child is 5 years of age.

Treatment for both types of retinoblastoma should include genetic counseling (a discussion with a trained professional about inherited diseases). Brothers and sisters of a child who has retinoblastoma should also have regular exams by an ophthalmologist (a doctor with special training in diseases of the eye) and genetic counseling about the risk of developing the cancer.

A child who has hereditary retinoblastoma is at risk for developing trilateral retinoblastoma and other cancers.

A child who has hereditary retinoblastoma is at risk for developing pineal tumors in the brain. This is called trilateral retinoblastoma. Regular follow-up exams using MRI (magnetic resonance imaging) or CT scans (computerized tomography) to check for this rare condition are important during treatment for retinoblastoma and should be continued until the child is 5 years of age. Hereditary retinoblastoma also increases the child’s risk of developing other types of cancer in later years. Regular follow-up exams are important.

Possible signs of retinoblastoma include “white pupil” and eye pain or redness.

These and other symptoms may be caused by retinoblastoma. Other conditions may cause the same symptoms. A doctor should be consulted if any of the following problems occur:

• Pupil of the eye appears white instead of red when light shines into it. This may be seen in flash photographs of the child.
• Eyes appear to be looking in different directions.
• Pain or redness in the eye.

Tests that examine the retina are used to detect (find) and diagnose retinoblastoma.

The following tests and procedures may be used:

• Physical exam and history: An exam of the body to check general signs of health, including checking for signs of disease, such as lumps or anything else that seems unusual. A history of the patient’s health habits and past illnesses and treatments will also be taken. The doctor will ask if there is a family history of retinoblastoma.
• Eye exam with dilated pupil: An exam of the eye in which the pupil is dilated (opened wider) with medicated eyedrops to allow the doctor to look through the lens and pupil to the retina. The inside of the eye, including the retina and the optic nerve, is examined with a light. Depending on the age of the child, this exam may be done under anesthesia.
• Ultrasound exam: A procedure in which high-energy sound waves (ultrasound) are bounced off internal tissues or organs and make echoes. The echoes form a picture of body tissues called a sonogram.
• CT scan (CAT scan): A procedure that makes a series of detailed pictures of areas inside the body, such as the eye, taken from different angles. The pictures are made by a computer linked to an x-ray machine. A dye may be injected into a vein or swallowed to help the organs or tissues show up more clearly. This procedure is also called computed tomography, computerized tomography, or computerized axial tomography.
• MRI (magnetic resonance imaging): A procedure that uses a magnet, radio waves, and a computer to make a series of detailed pictures of areas inside the body, such as the eye. This procedure is also called nuclear magnetic resonance imaging (NMRI).

Retinoblastoma is usually diagnosed without a biopsy (removal of cells or tissues so they can be viewed under a microscope to check for signs of cancer).

Certain factors affect prognosis (chance of recovery) and treatment options.

The prognosis (chance of recovery) and treatment options depend on the following:

• The stage of the cancer.
• How likely it is that vision can be saved in one or both eyes.
• The size and number of tumors.
• Whether trilateral retinoblastoma occurs.

National Cancer Institute

Melanoma

Melanoma is a disease in which malignant (cancer) cells form in the skin cells called melanocytes (cells that color the skin).

Melanocytes are found throughout the lower part of the epidermis. They make melanin, the pigment that gives skin its natural color. When skin is exposed to the sun, melanocytes make more pigment, causing the skin to tan, or darken.

The skin is the body’s largest organ. It protects against heat, sunlight, injury, and infection. The skin has 2 main layers: the epidermis (upper or outer layer) and the dermis (lower or inner layer).

When melanoma starts in the skin, the disease is called cutaneous melanoma.Melanoma may also occur in the eye and is called intraocular or ocular melanoma.

There are 3 types of skin cancer:

• Melanoma.

• Basal cell skin cancer.
• Squamous cell skin cancer.

Melanoma is more aggressive than basal cell skin cancer or squamous cell skin cancer.

Melanoma can occur anywhere on the body.

In men, melanoma is often found on the trunk (the area from the shoulders to the hips) or the head and neck. In women, melanoma often develops on the arms and legs. Melanoma usually occurs in adults, but it is sometimes found in children and adolescents.

Unusual moles, exposure to sunlight, and health history can affect the risk of developing melanoma.

Anything that increases your risk of getting a disease is called a risk factor. Having a risk factor does not mean that you will get cancer; not having risk factors doesn't mean that you will not get cancer. People who think they may be at risk should discuss this with their doctor. Risk factors for melanoma include the following:

• Unusual moles.
• Exposure to natural sunlight.
• Exposure to artificial ultraviolet light (tanning booth).
• Family or personal history of melanoma.
• Being white and older than 20 years.
• Red or blond hair.
• White or light-colored skin and freckles.
• Blue eyes.

Possible signs of melanoma include a change in the appearance of a mole or pigmented area.

These and other symptoms may be caused by melanoma. Other conditions may cause the same symptoms. A doctor should be consulted if any of the following problems occur:

• A mole that:

• • changes in size, shape, or color.
  • has irregular edges or borders.
  • is more than 1 color.
  • is asymmetrical (if the mole is divided in half, the 2 halves are different in size or shape).
  • itches.
  • oozes, bleeds, or is ulcerated (a hole forms in the skin when the top layer of cells breaks down and the underlying tissue shows through).

• Change in pigmented (colored) skin.
• Satellite moles (new moles that grow near an existing mole).

Tests that examine the skin are used to detect (find) and diagnose melanoma.

If a mole or pigmented area of the skin changes or looks abnormal, the following tests and procedures can help detect and diagnose melanoma:

• Skin examination: A doctor or nurse examines the skin to look for moles, birthmarks, or other pigmented areas that look abnormal in color, size, shape, or texture.
• Biopsy: A local excision is done to remove as much of the suspicious mole or lesion as possible. A pathologist then looks at the tissue under a microscope to check for cancer cells. Because melanoma can be hard to diagnose, patients should consider having their biopsy sample checked by a second pathologist.

Suspicious areas should not be shaved off or cauterized (destroyed with a hot instrument, an electrical current, or a caustic substance).

Certain factors affect prognosis (chance of recovery) and treatment options.

The prognosis (chance of recovery) and treatment options depend on the following:

• The stage of melanoma (whether cancer is found in the outer layer of skin only, or has spread to the lymph nodes, or to other places in the body.
• Whether there was bleeding or ulceration at the primary site.
• The location and size of the tumor.
• The patient’s general health.

Although many people are successfully treated, melanoma can recur (come back).

National Cancer Institute

Extrahepatic Bile Duct Cancer

Extrahepatic bile duct cancer is a rare disease in which malignant (cancer) cells form in the part of bile duct that is outside the liver.

A network of bile ducts (tubes) connects the liver and the gallbladder to the small intestine. This network begins in the liver where many small ducts collect bile, a fluid made by the liver to break down fats during digestion. The small ducts come together to form the right and left hepatic bile ducts, which lead out of the liver. The two ducts join outside the liver to become the common hepatic duct. The part of the common hepatic duct that is outside the liver is called the extrahepatic bile duct. The extrahepatic bile duct is joined by a duct from the gallbladder (which stores bile) to form the common bile duct. Bile is released from the gallbladder through the common bile duct into the small intestine when food is being digested.

Having colitis or certain liver diseases can increase the risk of developing extrahepatic bile duct cancer.

Anything that increases your risk of getting a disease is called a risk factor. Having a risk factor does not mean that you will get cancer; not having risk factors doesn’t mean that you will not get cancer. People who think they may be at risk should discuss this with their doctor. Risk factors include having any of the following disorders:

• Primary sclerosing cholangitis.

• Chronic ulcerative colitis.

• Choledochal cysts.
• Infection with a Chinese liver fluke parasite.

Possible signs of extrahepatic bile duct cancer include jaundice and pain.

These and other symptoms may be caused by extrahepatic bile duct cancer or by other conditions. A doctor should be consulted if any of the following problems occur:

• Jaundice (yellowing of the skin or whites of the eyes).
• Pain in the abdomen.

• Fever.

• Itchy skin.

Tests that examine the bile duct and liver are used to detect (find) and diagnose extrahepatic bile duct cancer.

The following tests and procedures may be used:

• Physical exam and history: An exam of the body to check general signs of health, including checking for signs of disease, such as lumps or anything else that seems unusual. A history of the patient’s health habits and past illnesses and treatments will also be taken.
• Ultrasound exam: A procedure in which high-energy sound waves (ultrasound) are bounced off internal tissues or organs and make echoes. The echoes form a picture of body tissues called a sonogram. The picture can be printed to be looked at later.
• CT scan (CAT scan): A procedure that makes a series of detailed pictures of areas inside the body, taken from different angles. The pictures are made by a computer linked to an x-ray machine. A dye may be injected into a vein or swallowed to help the organs or tissues show up more clearly. This procedure is also called computed tomography, computerized tomography, or computerized axial tomography. A spiral or helical CT scan makes detailed pictures of areas inside the body using an x-ray machine that scans the body in a spiral path.
• MRI (magnetic resonance imaging): A procedure that uses a magnet, radio waves, and a computer to make a series of detailed pictures of areas inside the body. This procedure is also called nuclear magnetic resonance imaging (NMRI).
• ERCP (endoscopic retrograde cholangiopancreatography): A procedure used to x-ray the ducts (tubes) that carry bile from the liver to the gallbladder and from the gallbladder to the small intestine. Sometimes bile duct cancer causes these ducts to narrow and block or slow the flow of bile, causing jaundice. An endoscope is passed through the mouth, esophagus, and stomach into the first part of the small intestine. An endoscope is a thin, tube-like instrument with a light and a lens for viewing. A catheter (a smaller tube) is then inserted through the endoscope into the pancreatic ducts. A dye is injected through the catheter into the ducts and an x-ray is taken. If the ducts are blocked by a tumor, a fine tube may be inserted into the duct to unblock it. This tube (or stent) may be left in place to keep the duct open. Tissue samples may also be taken and checked under a microscope for signs of cancer.
• PTC (percutaneous transhepatic cholangiography): A procedure used to x-ray the liver and bile ducts. A thin needle is inserted through the skin below the ribs and into the liver. Dye is injected into the liver or bile ducts and an x-ray is taken. If a blockage is found, a thin, flexible tube called a stent is sometimes left in the liver to drain bile into the small intestine or a collection bag outside the body.
• Biopsy: The removal of cells or tissues so they can be viewed under a microscope to check for signs of cancer. The sample may be taken using a thin needle inserted into the duct during an x-ray or ultrasound. This is called a fine-needle aspiration (FNA) biopsy. The biopsy is usually done during PTC or ERCP. Tissue may also be removed during surgery.
• Liver function tests: A procedure in which a blood sample is checked to measure the amounts of certain substances released into the blood by the liver. A higher than normal amount of a substance can be a sign of liver disease that may be caused by extrahepatic bile duct cancer.

Certain factors affect prognosis (chance of recovery) and treatment options.

The prognosis (chance of recovery) and treatment options depend on the following:

• The stage of the cancer (whether it affects only the bile duct or has spread to other places in the body).
• Whether the tumor can be completely removed by surgery.
• Whether the tumor is in the upper or lower part of the duct.
• Whether the cancer has just been diagnosed or has recurred (come back).

Treatment options may also depend on the symptoms caused by the tumor. Extrahepatic bile duct cancer is usually found after it has spread and can rarely be removed completely by surgery. Palliative therapy may relieve symptoms and improve the patient's quality of life.

National Cancer Institute

Extragonadal Germ Cell Tumors

Extragonadal germ cell tumors form from developing sperm or egg cells that travel from the gonads to other parts of the body.

“Extragonadal” means outside of the gonads (sex organs). When cells that are meant to form sperm in the testicles or eggs in the ovaries travel to other parts of the body, they may grow into extragonadal germ cell tumors. These tumors may begin to grow anywhere in the body but usually begin in organs such as the pineal gland in the brain, in the mediastinum, or in the abdomen.

Extragonadal germ cell tumors can be benign (noncancer) or malignant (cancer). Benign extragonadal germ cell tumors are called benign teratomas. These are more common than malignant extragonadal germ cell tumors and often are very large.

Malignant extragonadal germ cell tumors are divided into two types, nonseminoma and seminoma. Nonseminomas tend to grow and spread more quickly than seminomas. They usually are large and cause symptoms. If untreated, malignant extragonadal germ cell tumors may spread to the lungs, lymph nodes, bones, liver, or other parts of the body.

Age and gender can affect the risk of developing extragonadal germ cell tumors.

Anything that increases your chance of getting a disease is called a risk factor. Having a risk factor does not mean that you will get cancer; not having risk factors doesn’t mean that you will not get cancer. People who think they may be at risk should discuss this with their doctor. Risk factors for malignant extragonadal germ cell tumors include the following:

• Being male.
• Being age 20 or older.

• Having Klinefelter syndrome.

Possible signs of extragonadal germ cell tumors include chest pain and breathing problems.

Malignant extragonadal germ cell tumors may cause symptoms as they grow into nearby areas. Other conditions may cause the same symptoms. A doctor should be consulted if any of the following problems occur:

• Chest pain.
• Breathing problems.
• Cough.

• Fever.

• Headache.
• Change in bowel habits.
• Feeling very tired.
• Trouble walking.
• Trouble in seeing or moving the eyes.

Imaging and blood tests are used to detect (find) and diagnose extragonadal germ cell tumors.

The following tests and procedures may be used:

• Physical exam and history: An exam of the body to check general signs of health, including checking for signs of disease, such as lumps or anything else that seems unusual. The testicles may be checked for lumps, swelling, or pain. A history of the patient’s health habits and past illnesses and treatments will also be taken.
• Chest x-ray: An x-ray of the organs and bones inside the chest. An x-ray is a type of energy beam that can go through the body and onto film, making a picture of areas inside the body.
• Serum tumor marker test: A procedure in which a sample of blood is examined to measure the amounts of certain substances released into the blood by organs, tissues, or tumor cells in the body. Certain substances are linked to specific types of cancer when found in increased levels in the blood. These are called tumor markers. The following three tumor markers are used to detect extragonadal germ cell tumor:

• • Alpha-fetoprotein (AFP).
  • Beta-human chorionic gonadotropin (β-hCG).
  • Lactate dehydrogenase (LDH).

• Blood levels of the tumor markers help determine if the tumor is a seminoma or nonseminoma.
• CT scan (CAT scan): A procedure that makes a series of detailed pictures of areas inside the body, taken from different angles. The pictures are made by a computer linked to an x-ray machine. A dye may be injected into a vein or swallowed to help the organs or tissues show up more clearly. This procedure is also called computed tomography, computerized tomography, or computerized axial tomography.
• Ultrasound exam: A procedure in which high-energy sound waves (ultrasound) are bounced off internal tissues or organs, such as the testicles, and make echoes. The echoes form a picture of body tissues called a sonogram. The picture can be printed to be looked at later.
• Biopsy: The removal of cells or tissues so they can be viewed under a microscope by a pathologist to check for signs of cancer. The type of biopsy used depends on where the extragonadal germ cell tumor is found.

• • Excisional biopsy: The removal of an entire lump of tissue.
  • Incisional biopsy: The removal of part of a lump or sample of tissue.
  • Core biopsy: The removal of tissue using a wide needle.
  • Fine-needle aspiration (FNA) biopsy: The removal of tissue or fluid using a thin needle.

Certain factors affect prognosis (chance of recovery) and treatment options.

The prognosis (chance of recovery) and treatment options depend on the following:

• Whether the tumor is nonseminoma or seminoma.
• The size of the tumor and where it is in the body.
• The blood levels of AFP, β-hCG, and LDH.
• Whether the tumor has spread to other parts of the body.
• The way the tumor responds to initial treatment.
• Whether the tumor has just been diagnosed or has recurred (come back).

National Cancer Institute

Childhood Extracranial Germ Cell Tumors

Childhood extracranial germ cell tumors form from developing sperm or egg cells that travel to parts of the body other than the brain.

As a fetus develops, certain cells form sperm in the testicles or eggs in the ovaries. Sometimes these cells travel to other parts of the body and grow into germ cell tumors. This summary is about germ cell tumors that form in parts of the body that are extracranial (outside the brain). Extracranial germ cell tumors are most common in teenagers 15 to 19 years old.

Childhood extracranial germ cell tumors may be benign or malignant.

Extracranial germ cell tumors may be benign (noncancer) or malignant (cancer).

There are three types of extracranial germ cell tumors.

Extracranial germ cell tumors are grouped into mature teratomas, immature teratomas, or malignant germ cell tumors:

Mature Teratomas

Mature teratomas are the most common type of extracranial germ cell tumor. The cells of mature teratomas look very much like normal cells. Mature teratomas are benign and not likely to become cancer.

Immature Teratomas

Immature teratomas have cells that look very different from normal cells. They are more likely to become cancer.

Malignant Germ Cell Tumors

Malignant germ cell tumors are cancer. There are three types of malignant germ cell tumors:

• Yolk sac tumors: Tumors that make a hormone called alpha-fetoprotein (AFP).
• Germinomas: Tumors that make a hormone called beta-human chorionic gonadotropin (β-hCG).
• Choriocarcinomas: Tumors that make a hormone called beta-human chorionic gonadotropin (β-hCG).

Childhood extracranial germ cell tumors are grouped as gonadal or extragonadal.

Malignant extracranial germ cell tumors are grouped into gonadal and extragonadal.

Gonadal Germ Cell Tumors

Gonadal germ cell tumors form in the testicles or ovaries.

Testicular Germ Cell Tumors

Testicular germ cell tumors usually occur before the age of 4 years or in teenagers and young adults.

Testicular germ cell tumors in teenagers and young adults are different from those that form in early childhood. They are more like testicular cancer in adults. Testicular germ cell tumors are divided into two main types, nonseminoma and seminoma.

• Nonseminoma: These tumors are usually large and cause symptoms. They tend to grow and spread more quickly than seminomas.
• Seminoma: These tumors make a hormone called beta-human chorionic gonadotropin (β-hCG). They are more sensitive to radiation therapy than nonseminomas.

Boys older than 14 years with testicular germ cell tumors are treated in pediatric cancer centers, but the treatment is similar to that used in adults.

Ovarian Germ Cell Tumors

Ovarian germ cell tumors form in egg-making cells in an ovary. These tumors are more common in teenage girls and young women. Most ovarian germ cell tumors are benign teratomas.

Extragonadal Extracranial Germ Cell Tumors

Extragonadal germ cell tumors form in areas other than the testicles or ovaries.

Most germ cell tumors that are not in the testicles, ovaries, or brain, form along the midline of the body. This includes the following:

• Sacrum (the large, triangle-shaped bone in the lower spine that forms part of the pelvis).
• Coccyx (the small bone at the bottom of the spine, also called the tailbone).
• Mediastinum (the area between the lungs).
• Back of the abdomen.
• Neck.

In younger children, extragonadal extracranial germ cell tumors usually occur at birth or in early childhood. Most of these tumors are teratomas in the sacrum or coccyx.

In older children, teenagers, and young adults, extragonadal extracranial germ cell tumors are often in the mediastinum.

The cause of most childhood extracranial germ cell tumors is unknown.

Having certain inherited disorders can increase the risk of developing an extracranial germ cell tumor.

Anything that increases your risk of getting a disease is called a risk factor. Having a risk factor does not mean that you will get cancer; not having risk factors doesn’t mean that you will not get cancer. People who think they may be at risk should discuss this with their doctor. Possible risk factors for extracranial germ cell tumors include the following:

• Having certain genetic syndromes may increase the risk of developing childhood germ cell tumors:

• • Klinefelter syndrome may increase the risk of developing germ cell tumors in the mediastinum.
  • Swyer syndrome may increase the risk of developing germ cell tumors in the testes or ovaries.

• Having an undescended testicle may increase the risk of developing a testicular germ cell tumor.

Signs of childhood extracranial germ cell tumors depend on the type of tumor and where it is in the body.

Different tumors may cause the following signs and symptoms. Other conditions may cause these same symptoms. A doctor should be consulted if any of these problems occur.

• Most tumors of the sacrum and coccyx can be seen as a lump.
• A testicular tumor may cause a painless lump in the testicles.
• An ovarian germ cell tumor may cause:

• • Pain or a lump in the abdomen.
  • Fever.
  • Constipation.
  • No menstruation.
  • Unusual vaginal bleeding.

Imaging studies and blood tests are used to detect (find) and diagnose childhood extracranial germ cell tumors.

The following tests and procedures may be used:

• Physical exam and history: An exam of the body to check general signs of health, including checking for signs of disease, such as lumps or anything else that seems unusual. The testicles may be checked for lumps, swelling, or pain. A history of the patient's health habits and past illnesses and treatments will also be taken.
• Serum tumor marker test: A procedure in which a sample of blood is checked to measure the amounts of certain substances released into the blood by organs, tissues, or tumor cells in the body. Certain substances are linked to specific types of cancer when found in increased levels in the blood. These are called tumor markers. Most malignant germ cell tumors release tumor markers. The following tumor markers are used to detect extracranial germ cell tumors:

• • Alpha-fetoprotein (AFP).
  • Beta-human chorionic gonadotropin (β-hCG).

• For testicular germ cell tumors, blood levels of the tumor markers help show if the tumor is a seminoma or nonseminoma.
• Blood chemistry studies: A procedure in which a blood sample is checked to measure the amounts of certain substances released into the blood by organs and tissues in the body. An unusual (higher or lower than normal) amount of a substance can be a sign of disease in the organ or tissue that makes it.
• Cytogenetic analysis: A laboratory test in which cells in a sample of tissue are viewed under a microscope to look for certain changes in the chromosomes.
• Immunohistochemistry study: A laboratory test in which a substance such as an antibody, dye, or radioisotope is added to a sample of cancer tissue to test for certain antigens. This type of study is used to tell the difference between different types of cancer.
• Chest x-ray: An x-ray of the organs and bones inside the chest. An x-ray is a type of energy beam that can go through the body and onto film, making a picture of areas inside the body.
• CT scan (CAT scan): A procedure that makes a series of detailed pictures of areas inside the body, taken from different angles. The pictures are made by a computer linked to an x-ray machine. A dye may be injected into a vein or swallowed to help the organs or tissues show up more clearly. This procedure is also called computed tomography, computerized tomography, or computerized axial tomography.
• Ultrasound exam: A procedure in which high-energy sound waves (ultrasound) are bounced off internal tissues or organs and make echoes. The echoes form a picture of body tissues called a sonogram. The picture can be printed to be looked at later.
• Biopsy: The removal of cells or tissues so they can be viewed under a microscope by a pathologist to check for signs of cancer. In some cases, the tumor is removed during surgery and then a biopsy is done.

Certain factors affect prognosis (chance of recovery) and treatment options.

The prognosis (chance of recovery) and treatment options depend on the following:

• The type of germ cell tumor.
• Where the tumor first began to grow.
• The stage of the cancer (whether it has spread to nearby areas or to other places in the body).
• Whether the tumor can be completely removed by surgery.
• The patient's age and general health.
• Whether the cancer has just been diagnosed or has recurred (come back).

The prognosis for childhood extracranial germ cell tumors, especially ovarian germ cell tumors, is good.

National Cancer Institute

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