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: Surgery
[{'content': 'A pt. has a pituitary tumour and pheochromocytoma and a thyroid nodule. Which Ca is most likely to occur - \nSelect and explain. \nA. Follicular Ca, B. Medullary Ca, C. Papillary Ca, D. Anaplastic Ca', 'role': 'user'}, {'content': "Answer: B \nExplanation: This pt. is suffering from MEN Syndrome.\nMEN (Multiple endocrine neoplasias) or MEA (Multiple endocrine adenomatosis) syndromes are characterized by the familial occurrence of multiple endocrine neoplasms.\n3 types of MEN Syndrome are recognized.\n\na) MEN I (or Wermer's Syndrome*) consists of -\n\nPituitary adenoma (or hyperplasia)*\nParathyroid adenoma (or hyperplasia)*\nPancreatic islet cell hyperplasia, adenoma or carcinoma \n\nOther less common manifestations :\n\nforegut carcinoids\npheochromocytoma\nsubcutaneous or visceral lipomas\n\nb) MEN HA ( or Sipple syndrome)\n\nMedullary carcinoma of thyroid (MCT)*\nPheochromocytoma*\nParathyroid adenoma (or hyperplasia)*\nHirschsprung disease*\nCutaneous lichen amyloidosis*\n\n\nc) MEN H B\n\nMedullary carcinoma of thyroid (MCT)*\nPheochromocytoma *\nMarfanoid features*\nMucocutaneous and gastrointestinal neuromas*\nThus this pt. is suffering from MEN II A or II B syndrome (Pituitary tumor in this pt. is still confusing the question, but still; answer is definitely MCT).", 'role': 'assistant'}]