Thyroid cancer
is a thyroid neoplasm that is malignant. It can be treated with radioactive iodineor surgical resection of the thyroid gland. Chemotherapy or radiotherapy may also be used.
Symptoms
Most often the first symptom of thyroid cancer is a nodule in the thyroid region of the neck.However, many adults have small nodules in their thyroids, but typically under 5% of these nodules are found to be malignant. Sometimes the first sign is an enlarged lymph node. Later symptoms that can be present are pain in the anterior region of the neck and changes in voice due to involvement of recurrent larygeal nerve.
Thyroid cancer is usually found in a euthyroid patient, but symptoms of hyperthyroidism orhypothyroidism may be associated with a large or metastatic well-differentiated tumor.
Thyroid nodules are of particular concern when they are found in those under the age of 20. The presentation of benign nodules at this age is less likely, and thus the potential for malignancy is far greater.
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