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Kidney tumor

Adult malignancies - Miscellaneous

Frozen sections / intraoperative consultations


Reviewers: Sean Williamson, M.D. (see Reviewers page)
Revised: 13 July 2012, last major update July 2012
Copyright: (c) 2003-2012, PathologyOutlines.com, Inc.

General
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Margins:
● Assessment of surgical margins often performed in partial nephrectomy cases (Urology 2006;67:923, Scand J Urol Nephrol 2005;39:222)
● However, clinical significance may be limited, as only rare patients harbor residual disease in a follow-up radical nephrectomy specimen or repeated partial resection of margin
● Recurrence due to positive margin is uncommon (Urology 2011;77:1400, J Urol 2005;173:385)

Other indications:
● Solid renal mass in unusual setting, synchronous renal and extrarenal masses, cystic renal lesions, multiple renal masses, solid mass in diffusely cystic kidney (Arch Pathol Lab Med 2005;129:1585)
● However, no consensus exists (J Urol 2008;179:461)
● Cystic and spindle cell tumors are often misdiagnosed
● Clear cell renal cell carcinoma can be confused with inflammatory lesions, particularly those that contain foamy histiocytes

Gross images
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Renal cystic tumors

Micro images (frozen sections)
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Clear cell renal cell carcinoma, xanthogranulomatous pyelonephritis and malakoplakia


Urothelial, collecting duct and papillary carcinomas


Oncocytoma versus chromophobe carcinoma


Angiomyolipoma


Renal cystic tumors

End of Kidney tumor > Adult malignancies - Miscellaneous > Frozen sections / intraoperative consultations


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