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Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
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Renal papillary necrosis is seen in
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The correct answer is  Necrotizing papillitis (or papillary necrosis): It is one special pattern of acute pyelonephritis and is much more frequent in diabetics Hyaline aeriolosclerosis narrows blood vessels -> reduces the blood supply to the renal medulla -> ischemia ->causes necrosis of the tips of papillae (papillary necrosis). Causes of necrotizing papillitis: Diabetes mellitus Sickle cell anemia Analgesic nephropathy Obstructive uropathy. Ref: RAM DAS NAYAK EXAM PREPARATORY MANUAL FOR UNDERGRADUATES 2nd ed. pg no: 615