Thyroid Cancer

Thyroid cancer is a malignancy that originates in the thyroid gland, a butterfly-shaped endocrine organ located in the neck responsible for producing hormones that regulate metabolism, heart rate, blood pressure, and body temperature. It is classified into several types, with papillary thyroid cancer being the most common, accounting for 80–85% of cases, followed by follicular (10–15%), medullary (MTC), and anaplastic thyroid cancers, which are less common but more aggressive. Risk factors include age over 60, family history of thyroid or other cancers, and prior exposure to radiation, particularly during childhood. Symptoms often include a painless neck lump, difficulty swallowing, trouble breathing, and voice changes such as hoarseness, although many cases are asymptomatic and discovered incidentally. Diagnosis typically involves ultrasound imaging, fine-needle aspiration biopsy, and sometimes CT or MRI scans. Treatment usually consists of surgical removal of the thyroid (thyroidectomy) and affected lymph nodes, followed by radioactive iodine therapy in certain cases, with additional options like targeted therapy or chemotherapy for advanced or resistant disease. Early detection generally leads to a favorable prognosis, with high survival rates for most types, especially papillary and follicular thyroid cancers.
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