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': 'All are associated with MEN-2 except : \nSelect and explain. \nA. Phoeochromocytoma, B. Islet cell hyperplasia, C. Medullary carcinoma thyroid, D. Parathyroid adenoma', 'role': 'user'}, {'content': "Answer: B \nExplanation: Islet cell hyperplasia /Ref: Harrison 17th/e p 2361 & 16thie p 2231 and Robbins 7th/e p. 12211 MULTIPLE ENDOCRINE NEOPLASIA (MEN) SYNDROMES MEN I MEN 2A MEN 2B Pituitary Adenomas[', Hyperplasia -- Parathyroid Hyperplasia AdenomasQ Hyperplasia or adenomas' Pancreatic islets Hyperplasia AdenoniasQ CarcinomasQ -- ___. Adrenal Coical hyperplasia2 Pheochromocyt omae PheochromocytomaQ Thyroid -- C-cell hyperplasiaQ Medullary carcinoma C-cell hyperplasiao Medullary carcinomaQ Extraendocrine changes . Forcgut carcinoid0 * Subcutaneous or visceral . Dermal angiofibroma or collagenoma Cutaneous lichen amyloidosis Hirschsprung diseaseQ Mucosal and gastro intestinal neuroma, ganglio-neuromas, Marfanoid habitus Mutant gene locus MEN I RET RET", 'role': 'assistant'}]