近年来,随着成人肾上皮性肿瘤形态学和遗传学特点研究的进展,已对此类肿瘤做出了具有临床和预后意义的明确的分级,这些肿瘤的分级依赖于形态学表现,同时也反映了这些肿瘤具有明确的遗传学特征。然而大约6%~7%的肾肿瘤形态学上仍未能分类,需要对这些尚未分类肿瘤的形态学进行详 In recent years, with the progress of studies on the morphological and genetic characteristics of adult renal epithelial tumors, a clear grading of clinical and prognostic significance has been made for such tumors, the classification of which depends on morphological manifestations, These tumors have a clear genetic profile. However, about 6% to 7% of kidney neoplasms are still not morphologically classified and the morphology of these unclassified tumors needs to be detailed