Medullary thyroid carcinoma is associated with-: (A) MEN I, (B) MEN II, (C) MEN IV, (D) All of the above
Answer is B. Ans. is 'b' i.e., MEN II o About 70% of tumors arise sporadically. The remainder occurs in the rsetting of MEN syndrome 2A or 2B or as familial tumors without an associated MEN syndrome (familial medullary thyroid carcinoma, or FMTC