This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Oncology, Subject name: Medicine
[{'content': 'A 43-year-old man had a subarachnoid hemorrhage from an intracranial aneurysm 8 years ago. He has also had progressive renal impairment associated with hematuria. What is the most likely diagnosis?For the above patient with a medical problem, select the most likely diagnosis or renal impairment. \nSelect and explain. \nA. polycystic kidney disease, B. medullary sponge kidney, C. medullary cystic disease, D. Bartter syndrome', 'role': 'user'}, {'content': 'Answer: A \nExplanation: The autosomal dominant form of polycystic kidney disease is often associated with hepatic cysts, intracranial aneurysms, and colonic diverticula. The occurrence of renal failure is usually in the third decade or later. Complications include infection, obstruction by stone or clot, and gross hematuria.', 'role': 'assistant'}]