Medullary thyroid carcinoma is associated with?: (A) MEN I, (B) MEN II, (C) MEN III, (D) MEN IV
Answer is B. Ans. is 'b' i.e., MEN II 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.