Abstract

Abstract Context.—Nonneoplastic kidney diseases, such as arterionephrosclerosis and/or diabetic nephropathy, are commonly encountered in tumor nephrectomy and nephroureterectomy specimens. Although any nonneoplastic kidney disease may be encountered in these resection specimens by chance, additional diseases that may be related to the underlying neoplasm or its treatment regimen include thrombotic microangiopathy, Amyloid A amyloidosis, membranous nephropathy, immunoglobulin A nephropathy, membranoproliferative glomerulonephritis, pauci-immune crescentic glomerulonephritis, focal segmental glomerulosclerosis, minimal-change disease, acute interstitial nephritis, and xanthogranulomatous pyelonephritis. Given the morbidity of chronic kidney disease and the relatively favorable 5-year survival rates for urothelial and renal cell carcinomas, accurate evaluation of the nonneoplastic kidney parenchyma is important. Objectives.—We will discuss our approach for evaluating the nonneoplastic kidney parenchyma in tu...

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