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Kidney tumor

Adult malignancies - Miscellaneous

Features to report


Reviewers: Sean Williamson, M.D. (see Reviewers page)
Revised: 17 July 2012, last major update July 2012
Copyright: (c) 2003-2012, PathologyOutlines.com, Inc.

General
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Editor’s note

● Specimen type / laterality
● Tumor location(s)
● Histologic subtype
    ● Presence of sarcomatoid features
● Tumor size(s) and focality
● Nuclear grade
● Microscopic/macroscopic involvement of capsule, fat, Gerota’s fascia, renal vessels, renal sinus, ureter, other tissues
● Margins: Gerota’s fascia, renal vessels, ureter
● Additional margins for partial nephrectomy: perinephric fat, renal parenchyma, renal capsule
● Angiolymphatic invasion
● Lymph nodes: location, number obtained, number involved by tumor, size of largest metastasis
● Involvement of adrenal gland or other tissues

Other renal disease: diabetic nephropathy and other medical renal disorders are frequently unrecognized (Am J Surg Pathol 2007;31:1703, Arch Pathol Lab Med 2009;133:189)
● Useful to assess risk of progressive renal failure post-nephrectomy (Am J Surg Pathol 2006;30:575)

● There are several possible “capsules” – fibrous pseudocapsule over tumor (not always present), actual renal capsule (missing in hilar region) and Gerota’s fascia (covers perirenal adipose tissue)

Micro images
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Inflammatory pseudocapsule


Outermost tumor cells are in perirenal fat

End of Kidney tumor > Adult malignancies - Miscellaneous > Features to report


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