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': 'In a patient with pheochromocytoma, all of the following are seen except? \nSelect and explain. \nA. Diarrhoea, B. Ohostatic hypotension, C. Episodic hypeension, D. Weight gain', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Due to increased sympathomimetic stimulation, Pheochromocytoma has a weight loss. Phaeochromocytoma produces norepinephrine (80% cases) leading to hypeension but since the catecholamines act for sho duration and are released in bursts abnormally, the BP increases for some hours a day, which is referred to as Episodic hypeension. This catecholamine excess in future will lead to a persistent vasoconstriction, referred to as volume contracted state. This explains the Postural Hypotension/Ohostatic Hypotension Pheochromocytoma is a nasty tumor that can produce V.I.P and leads to Secretory diarrhea.', 'role': 'assistant'}]