Subtypes of basal cell carcinoma, the most common type of skin cancer, may differ in appearance, aggressiveness, treatment options, and who’s likely to develop them. Basal cell carcinoma (BCC) is the ...

Hypothyroidism is classified based on the origin of the hormone deficiency, whether it stems from the thyroid gland itself (primary), the pituitary gland (secondary), or the hypothalamus (tertiary).