This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Biochemistry
Medullary carcinoma of the thyroid is associated with which of the following syndrome: 
Select and explain. 
A. MEN I, B. MEN II A, C. Fraumeni syndrome, D. Hashimoto's thyroiditis
B: MEN II A
Answer: B: MEN II A 
Explanation: 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.