What type of diseases afflict the thyroid gland?
Thyroid diseases can be categorized into physiologic diseases and anatomic diseases. Physiologic diseases include HYPERTHYROIDISM (overactive thyroid) and HYPOTHYROIDISM (underactive thyroid). Anatomic diseases include THYROID NODULE (which can be benign or malignant) and GOITER. A special category is inflammatory disease of the thyroid gland called HASHIMOTO’S THYROIDITIS.