DEFINITION OF THYROID CANCER
Thyroid cancer is a malignancy of the thyroid, which has 4 types, namely: papillary, follicular, anaplastic and medullary. Thyroid cancer rarely causes enlargement of the gland, more often causes a small growth (nodules) in the gland. Most thyroid nodules are benign, thyroid cancer is usually curable.
Thyroid cancer often limits the ability to absorb iodine, and limit the ability to produce thyroid hormone, but sometimes produce enough thyroid hormone, causing hyperthyroidism.
ETIOLOGY THYROID CANCER
The etiology of this disease is uncertain, which acts specifically to occur well differentiated (papillary and follicular) are the radiation and endemic goitre, and for medullary type is genetic factors. Not known a carcinoma, which for anaplastic and medullary cancer.
Radiation is one of the etiological factors of thyroid cancer. Many cases of cancer in children previously received radiation to the head and neck because of other diseases. Usually the effects of radiation occur after 5-25 years, but an average of 9-10 years. TSH stimulation of the old is also one of etiological factors of thyroid cancer. Other risk factors are family history of thyroid cancer and chronic goiter.
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Thyroid cancer is a malignancy of the thyroid, which has 4 types, namely: papillary, follicular, anaplastic and medullary. Thyroid cancer rarely causes enlargement of the gland, more often causes a small growth (nodules) in the gland. Most thyroid nodules are benign, thyroid cancer is usually curable.
Thyroid cancer often limits the ability to absorb iodine, and limit the ability to produce thyroid hormone, but sometimes produce enough thyroid hormone, causing hyperthyroidism.
ETIOLOGY THYROID CANCER
The etiology of this disease is uncertain, which acts specifically to occur well differentiated (papillary and follicular) are the radiation and endemic goitre, and for medullary type is genetic factors. Not known a carcinoma, which for anaplastic and medullary cancer.
Radiation is one of the etiological factors of thyroid cancer. Many cases of cancer in children previously received radiation to the head and neck because of other diseases. Usually the effects of radiation occur after 5-25 years, but an average of 9-10 years. TSH stimulation of the old is also one of etiological factors of thyroid cancer. Other risk factors are family history of thyroid cancer and chronic goiter.
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