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': 'True about pheochromocytoma are all except:- \nSelect and explain. \nA. Urinary VMA is most specific for pheochrocytoma, B. Paraganglioma occurs at skull base, C. 10% are extra adrenal., D. Organ of Zukerkandi is most common extra adrenal site', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Urinary VMA is most specific for Neuroblastoma (Impoant) Paraganglioma occur at skill base (aka) Chemodectoma (aka) Potato tumor Pheochromocytomas are 10% extra adrenal Organ Of Zuckerkandl is MC extra adrenal Sympathetic chain positive', 'role': 'assistant'}]