Focal Segmental Glomerulosclerosis Preceding Type 2 Papillary Renal Cell Carcinoma

Figure 2

P-RCC gross and microscopic findings: (a) grossly, the tumor is less than 7 cm in diameter and confined to Gerota’s fascia, making it a stage I tumor. (b) Papillary configuration of the architecture, with (c) necrosis intermittently throughout (100x magnification). (d) Pseudostratification with eosinophilic cytoplasm admixed with foamy histiocytes within a fibrovascular core (400x magnification). These are among the most characteristic features of type 2 papillary renal cell carcinoma.

(a)

(b)

(c)

(d)