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. Author manuscript; available in PMC: 2016 Mar 1.
Published in final edited form as: Am J Surg Pathol. 2015 Mar;39(3):365–373. doi: 10.1097/PAS.0000000000000338

Figure 4.

Figure 4

(Case 2). A. This variably cellular fibroblastic neoplasm is centered in the kidney and entraps native glomeruli and renal tubules. B. The neoplasm encircles a native renal glomerulus. C. The neoplasm is composed of epithelioid clear cells in a background of dense strands of sclerotic collagen which separate individual neoplastic cells. D. Areas of metaplastic bone formation are evident. E. More cellular areas of the tumor are associated with hypocellular collagenized nodules, reminiscent of those of HSCTGR. G. Neoplastic cells are diffusely immunoreactive for MUC4.