Open AccessPapillary Renal Cell Carcinoma
Author(s) -
Matsumoto Toshiharu,
Lijima Tetsuo,
Kuwabara Noriyuki,
Wakumoto Yoshiaki,
Fukushima Takeshi,
Sakamoto Yoshirou,
Kitagawa Ryuichi,
Takeda Keiko,
Oonuma Yachiyo,
Suzuki Setsuko
Publication year - 1992
Publication title -
acta patholigica japonica
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.73
H-Index - 74
ISSN - 0001-6632
DOI - 10.1111/j.1440-1827.1992.tb02545.x
Subject(s) - pathology , papillary renal cell carcinomas , medicine , renal cell carcinoma , stromal cell , stroma , carcinoma , atypia , nephrectomy , clear cell , psammoma body , kidney , immunohistochemistry
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.