This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Urology, Subject name: Surgery
[{'content': "Hypeension with hypokalemia and a 7-cm suprarenal mass suggests the diagnosis of \nSelect and explain. \nA. Cushing's syndrome, B. Adrenal carcinoma, C. Hpypernephroma, D. Pheochromocytoma", 'role': 'user'}, {'content': "Answer: B \nExplanation: Adrenocoical carcinoma Adrenocoical carcinoma is a rare tumor More than half of Adrenocoical carcinoma are functional Cushing's syndrome is most commonly seen followed by vitilization Clinical features Almost all cases occur in patients 40-50 years of age No gender predilection More than half of Adrenocoical carcinomas are functional Cushing's syndrome is most commonly seen, followed by vitilization Very large at initial evaluation(mean tumor size, 9-12cm) Metastasis to the lymph nodes, liver and lungs may be found Ref : schwaz's principle of surgery 10th edition Pgno : 1588", 'role': 'assistant'}]