Hermanek P, Sigel A, Chlepas S
Eur Urol. 1976;2(4):189-91. doi: 10.1159/000472001.
The Erlangen system of histologic grading of the malignancy of renal cell cancers is described in detail. It takes into consideration the type of cell and pattern of the tumor and differentiates between grades 1, 2, and 3. Grade 1 was observed in 10%, grade 2 in 51%, and grade 3 in 39% of the cases. The difference in the 5-year survival rates between tumors of grade 3 and those of tumors of grades 1 and 2 is statistically significant.
详细描述了肾细胞癌恶性程度的埃尔朗根组织学分级系统。该系统考虑了细胞类型和肿瘤模式，并区分1级、2级和3级。10%的病例为1级，51%为2级，39%为3级。3级肿瘤与1级和2级肿瘤的5年生存率差异具有统计学意义。
