Multiple endocrine neoplasia type 2 (MEN2) is a rare hereditary condition characterized by the development of tumors in multiple endocrine glands, including the thyroid, parathyroid, and adrenal glands. It is further classified into three subtypes: MEN2A, MEN2B, and familial medullary thyroid carcinoma (FMTC), each with varying clinical presentations and associated risks.