papillary necrosis


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papillary necrosis

Papillary necrosis of renal papillae Nephrology A complication of acute pyelonephritis, consisting of uni- or bilateral lesions of one or more pyramids, with a white-gray discoloration of the pyramid tips, in a background of renal failure Clinical Renal colic, pyuria Etiology DM, sickle cell anemia, analgesics–aspirin, phenacetin, cyclophosphamide, ischemia, post-obstruction pyelonephritis
References in periodicals archive ?
The differential diagnosis for the imaging appearance of renal tuberculosis includes chronic pyelonephritis, papillary necrosis, medullary sponge kidney, calyceal diverticulum, renal cell carcinoma, transitional cell carcinoma and xanthogranulomatous pyelonephritis.
In this AIDS patient, the sterile leukocyturia/hematuria accompanied by bladder suffering symptoms, and recurrent lower back pain were suggestive for urinary tuberculosis, which may also cause renal papillary necrosis. However, the complete disappearance of the urinary symptoms and the normalization of the patient's urinalysis (which were long time persistent) with the stop of IDV strongly point out for a causal relationship between IDV use and patient's renal/urologic nephrotoxicity.
The patient's past medical history included Crohn's disease diagnosed 4 years prior, recurrent pancreatitis, pancreas divisum, chronic renal failure secondary to interstitial disease, and papillary necrosis. She had not had any prior abdominal surgery for IBD.

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