Papillary renal cell carcinoma Papillary renal cell carcinoma. The histologic architecture of papillary renal cell carcinoma is papillae lined by neoplastic cells, with a core of foamy macrophages. Hematoxylin and eosin, 200×. Source: Chapter 16. Pathology of the Kidney and Bladder, Pathology: The Big Picture Citation: Kemp WL, Burns DK, Brown TG. Pathology: The Big Picture; 2008 Available at: http://accessmedicine.mhmedical.com/DownloadImage.aspx?image=/data/books/kemp1/kemp1_c016f018.png&sec=41572118&BookID=499&ChapterSecID=41568299&imagename= Accessed: December 21, 2017 Copyright © 2017 McGraw-Hill Education. All rights reserved