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Updated: Mar 20, 2026

In Vivo, Percutaneous, Needle Based, Optical Coherence Tomography of Renal Masses
Published on: March 30, 2015
[Two Cases of Oncocytic Papillary Renal Cell Carcinoma]
Takashi Matsuoka1, Chihiro Ichikawa2, Arinobu Fukunaga1
1The Department of Urology, Kobe City Medical Center General Hospital.
Abstract:
Oncocytic papillary renal cell carcinoma isa variant of papillary renal cell carcinoma (PRCC). We herein report two cases treated with retroperitoneoscopic partial nephrectomy. Histologically, tumor cells of both cases exhibit round and regular nuclei with CK7 positive areas in the cytoplasm typical of TYPE1 PRCC and eosinophilic granular cytoplasm with E-cadherin positive areas in the cytoplasmic membrane, which indicates TYPE2 PRCC. Out of 46 cases reported in the literature, only one died of disease, which reveals its low malignant potential.
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