This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General anatomy, Subject name: Anatomy
[{'content': 'Renal papillary necrosis is almost associated with the following condition \nSelect and explain. \nA. Diabetes mellitus, B. analgesicnephroathy, C. Chronic pyelonephritis, D. Post streptococcal GN', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Refer p 936 Most common cause of papillary necrosis is diabetes mellitus Acute papillary necrosis is most often a complication of acute pyelonephritis in diabetes. Chronic papillary necrosis is seen in assoscation with analgesic nephropathy', 'role': 'assistant'}]