Clear cell papillary renal cell carcinoma: A case report and review of the literature

Figure 2 Photomicrographs of clear cell papillary renal cell carcinoma. A: Gross findings; B: H and E: The tumor showed papillary, cystic and tubular patterns in low powered magnification (original magnification × 12.5); C: The tumor is composed of clear cells with uniform nuclei typically showing a linear arrangement away from the basal membrane (original magnification × 200); D: The typical immunohistochemical staining of carbonic anhydrase IX. The staining pattern is a cup-like distribution typical feature of clear cell papillary renal cell carcinoma (original magnification × 200).