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目的 提高对肾细胞癌的CT诊断和病理认识。方法 回顾性分析24例肾细胞癌CT表现对照病理结果。结果16例为透明细胞癌,血供丰富,皮髓质期增强较明显,增强度>85Hu。3例乳头型肾细胞癌血供不丰富,皮髓质期无明显增强,增强度<80Hu。91.6％病例有皮髓质分界消失征象。54％肾癌生长以膨胀为主有假包膜征;70.8％以浸润生长为主有边缘棘状突及分叶征象。结论 于皮髓质期认识皮髓质分界消失征对肾细胞癌的诊断有重要价值,假包膜,棘状突,分叶征象对肾细胞癌诊断有一定的特异性。肾细胞癌的增强度对其亚型鉴别诊断有一定价值。
Objective To improve the CT diagnosis and pathological understanding of renal cell carcinoma. Methods The CT findings of 24 cases of renal cell carcinoma were retrospectively analyzed. Results 16 cases of clear cell carcinoma, rich in blood supply, more significant enhancement of the corticomedullary phase, the enhancement of> 85Hu. Three cases of papillary renal cell carcinoma blood supply is not rich, no significant enhancement of the corticomedullary period, the degree of enhancement <80Hu. 91.6% cases of corticomedullary demarcation disappeared signs. 54% of the growth of renal cell carcinoma with dilated main capsule signs; 70.8% of infiltration of growth-based edge of the spinous process and lobulation signs. Conclusions It is of great value in the diagnosis of renal cell carcinoma to recognize the disappearance of the corticomedullary borderline in the corticomedullary period. The pseudocapsule, spinous process and leaflet sign have certain specificity for the diagnosis of renal cell carcinoma. The enhancement of renal cell carcinoma has a certain value in the differential diagnosis of its subtypes.