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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.


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

Inflammatory pseudocapsule

Outermost tumor cells are in perirenal fat

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

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