Medullary carcinoma of the thyroid is associated with which of the following syndrome:: (A) MEN I, (B) MEN II A, (C) Fraumeni syndrome, (D) Hashimoto's thyroiditis
Answer is B. MEN 2A (Sipple syndrome) is associated with medullary thyroid carcinoma, pheochromocytoma and parathyroid adenoma. Neural crest tumors associated with it are gliomas, glioblastoma and meningioma. Ref: Essentials of Rubin's Pathology By Emanuel Rubin, 5th Edition, Page 486.