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一、材料与方法对例肾细胞癌取自解放军总医院病理科1960～1985年存档的福马林固定、石蜡包理组织标本，其中透明细胞癌20例，颗粒细胞癌5例，混合细胞癌6例；组织学分级标准有三级癌18例、11级癌10例、III级癌3例；按临床分期有1期癌16例，II期癌7例，III期癌5例，IV期癌3例；
Materials and Methods The cases of renal cell carcinoma were obtained from the fixed-paraffin-embedded tissue specimens from 1960 to 1985 in Department of Pathology, PLA General Hospital, 20 cases of which were clear cell carcinoma, 5 cases of granulosa cell carcinoma and 5 cases of mixed cell carcinoma 6 cases; histological grading standards of 18 cases of tertiary cancer, grade 11 cancer in 10 cases, grade III cancer in 3 cases; according to the clinical stage of a cancer in 16 cases, 7 cases of stage II cancer, 5 cases of stage III, 3 cases of cancer