title: [Two Cases of Oncocytic Papillary Renal Cell Carcinoma].
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.
authors.affiliation: The Department of Urology, Kobe City Medical Center General Hospital.
authors.forename: Takashi
authors.initials: T
authors.lastname: Matsuoka
authors.affiliation: The Department of Pathology, Kobe City Medical Center General Hospital.
authors.forename: Chihiro
authors.initials: C
authors.lastname: Ichikawa
authors.affiliation: The Department of Urology, Kobe City Medical Center General Hospital.
authors.forename: Arinobu
authors.initials: A
authors.lastname: Fukunaga
authors.affiliation: The Department of Urology, Kobe City Medical Center General Hospital.
authors.forename: Toshihumi
authors.initials: T
authors.lastname: Yano
authors.affiliation: The Department of Urology, Kobe City Medical Center General Hospital.
authors.forename: Yoshio
authors.initials: Y
authors.lastname: Sugino
authors.affiliation: The Department of Urology, Kobe City Medical Center General Hospital.
authors.forename: Takuya
authors.initials: T
authors.lastname: Okada
authors.affiliation: The Department of Pathology, Kobe City Medical Center General Hospital.
authors.forename: Yukihiro
authors.initials: Y
authors.lastname: Imai
authors.affiliation: The Department of Urology, Kobe City Medical Center General Hospital.
authors.forename: Mutsushi
authors.initials: M
authors.lastname: Kawakita
mesh_terms: D000369:Aged, 80 and over; D002292:Carcinoma, Renal Cell / Q000473:pathology*; D006801:Humans; D007680:Kidney Neoplasms / Q000473:pathology*; D008297:Male; D008875:Middle Aged