Kidney tumor - adult malignancies
Adult renal cell carcinoma
Unclassified renal cell carcinoma
Reviewers: Sean Williamson, M.D. (see Reviewers page)
Revised: 28 June 2012, last major update June 2012
Copyright: (c) 2003-2012, PathologyOutlines.com, Inc.
● Tumors that cannot be otherwise classified, often because they have features fitting more than one category
● 5% of all renal tumors
● Tumors are histologically heterogeneous and often high grade (93% Fuhrman's nuclear grade 3 or 4) and high stage (45%-83% stage 3 and 4, Am J Surg Pathol 2002;26:281, BJU Int 2007;100:802)
● However, tumors that closely resemble oncocytoma but show unusual features may also fall into this category
● Molecular techniques may be useful
● Tumor with features of oncocytoma, chromophobe carcinoma, collecting duct carcinoma and sarcomatoid carcinoma
(Arch Pathol Lab Med 2004;128:1274)
Case report above - Various images
End of Kidney tumor - adult malignancies > Adult renal cell carcinoma > Unclassified renal cell carcinoma
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