This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Disorders of Adrenal Gland, Subject name: Medicine
[{'content': 'Which of the following is not seen in MEN1? \nSelect and explain. \nA. Posterior pituitary tumors, B. Foregut carcinoids, C. Parathyroid hyperplasia, D. Pancreatic neuroendocrine tumors', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Features of Multiple Endocrine Neoplasia (11q l3)/Intron 4 ss : Parathyroid adenoma (90%)- Most common presentation. Entero-pancreatic tumours- Most common is gastrinoma and least common is V.I.Poma in MEN1. Pituitary adenoma- most common is Prolactinoma and least common is non-functioning adenoma in MEN1. Associated tumours. Adrenal coical tumour. Neuroendocrine tumours- thymus, lungs (Foregut derivatives include bronchus and thymus and hence choice B is correct). Lipoma Angiofibroma -Most common skin manifestation in MEN 1 (Angiofibroma>collagenoma) Brain tumour -meningioma Pheochromocytoma (<1%)', 'role': 'assistant'}]