Necrotizing pappillitis may be seen in all of the following conditions except :
Sickle cell disease
Tuberculous pyelonephritis
Diabetis Mellitus
Analgesic nephropathy
Answer is B (Tuberculous Pyelonephritis) ruberculosis is the least impoant/common cause of necrotizing papillitis amongst the options provided. Causes of Renal Papillary Necrosis /Necrotizing Papillitis Analgesic Abuse Nephropathy (NSA1Ds) Diabetes Mellitus Sickle cell Disease Obstruction in association with infection (pyelonepliritis) Chronic Alcoholism Vascular Renal Diseases (Renal vein thrombosis)