Skip navigation | ||
|
||
Medical Encyclopedia |
|
Other encyclopedia topics: | A-Ag Ah-Ap Aq-Az B-Bk Bl-Bz C-Cg Ch-Co Cp-Cz D-Di Dj-Dz E-Ep Eq-Ez F G H-Hf Hg-Hz I-In Io-Iz J K L-Ln Lo-Lz M-Mf Mg-Mz N O P-Pl Pm-Pz Q R S-Sh Si-Sp Sq-Sz T-Tn To-Tz U V W X Y Z 0-9 |
Contents of this page: | |
|
|
|
|
Alternative names Return to top
Tumor - thyroid; Cancer - thyroidDefinition Return to top
Thyroid cancer is a malignancy (cancerous growth) of the thyroid gland.Causes, incidence, and risk factors Return to top
Thyroid cancer can occur in all age groups. People who have had radiation therapy to the neck are at higher risk. This therapy was commonly used in the 1950s to treat enlarged thymus glands, adenoids and tonsils, and skin disorders. People who received radiation therapy as children have a higher incidence of thyroid cancer.
Other risk factors are a family history of thyroid cancer and chronic goiter. The disease affects 1 in 1,000 people.
There are several types of thyroid cancer:
Symptoms Return to top
Signs and tests Return to top
A physical examination can reveal a thyroid mass or nodule (usually in the lower part of the front of the neck) or enlarged lymph nodes in the neck.Treatment Return to top
Treatment varies depending on the type of tumor.
Surgery is usually the treatment of choice, with usually the entire thyroid gland removed. If the physician suspects that the cancer has spread to lymph nodes in the neck, these will also be removed during surgery.
Radiation therapy with radioactive iodine is often used with or without surgery. Radiation therapy with beam radiation can also be used.
After treatment, patients need to take thyroid hormone to replace what their glands used to make. The dose is usually a little higher than what the body needs, which helps keep the cancer from coming back.
If the cancer does not respond to surgery or radiation and has spread to other parts of the body, chemotherapy may be used, but this is only effective for about a third of patients.
Support Groups Return to top
The stress of the illness can often be eased by joining a support group of people who share common experiences and problems. See cancer - support group.Expectations (prognosis) Return to top
Anaplastic carcinoma has the worst prognosis (probable outcome). One variety of this cancer, the giant cell type, carries an expected life span of less than 6 months after diagnosis.Complications Return to top
Calling your health care provider Return to top
Call your health care provider if you notice a nodule or mass in your neck.Prevention Return to top
There is no known prevention. Awareness of risk (such as previous radiation therapy) can allow earlier diagnosis and treatment. Update Date: 5/3/2004 Updated by: Stephen Grund, M.D., Ph.D., Chief of Hematology & Oncology and Director of the George Bray Cancer Center at New Britain General Hospital, New Britain, CT. Review provided by VeriMed Healthcare Network.
Home | Health Topics | Drug Information | Encyclopedia | Dictionary | News | Directories | Other Resources | |
Copyright | Privacy | Accessibility | Selection Guidelines U.S. National Library of Medicine, 8600 Rockville Pike, Bethesda, MD 20894 National Institutes of Health | Department of Health & Human Services |
Page last updated: 28 October 2004 |