Papillary Renal Cell Carcinoma |
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| Authors: | Toshiharu Matsumoto Tetsuo lijima Noriyuki Kuwabara Yoshiaki Wakumoto Takeshi Fukushima Yoshirou Sakamoto Ryuichi Kitagawa Keiko Takeda Yachiyo Oonuma Setsuko Suzuki |
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| Affiliation: | First Department of Pathology, School of Medicine, Tokyo.;Department of Urology, Juntendo University, School of Medicine, Tokyo.;Clinical Laboratory, Juntendo University Hospital, Tokyo. |
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| Abstract: | Papillary renal cell carcinoma is an uncommon variant of renal cell carcinoma which has unique features including hypovascularity or avascularity, extensive stromal macrophage infiltration and better prognosis than that for nonpapillary renal cell carcinoma. Two cases of papillary renal cell carcinoma presenting hypovascular or avascular angiology are presented. Histologically, the two tumors had a purely papillary structure. Papillae were lined by a layer of epithelial cells which lacked prominent cellular atypia, and there were numerous macrophages in the stroma. In addition, in one patient, extensive calcification of the tumor capsule was present. Furthermore, our experience in the present study with imprint cytology indicates that it offers corroborative information for the intraoperative diagnosis made on the basis of frozen section examination. Acta Pathol Jpn 42: 298 303, 1992. |
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| Keywords: | Key words: Papillary renal cell carcinoma Pathology Imprint cytology |
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