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目的 评价螺旋CT多期扫描在小肾癌诊断中的价值。方法 分析 15例小肾癌的螺旋CT表现及其病理基础。结果 小实性肾癌 13例 ,增强扫描皮质期 9例呈明显强化 ,4例呈轻中度强化 ;小囊性肾癌 2例 ,增强后皮质期囊壁、壁结节、囊内分隔明显强化。实质期及肾盂期强化迅速减退 ,呈快进快退改变。病理上所有病例血窦丰富 (2例小囊性肾癌囊变明显 ,但实性部分血窦丰富 )。结论 螺旋CT多期扫描在小肾癌的诊断中较常规CT有明显优越性 ;多数小肾癌皮质期强化明显、实质期强化迅速减退 ,呈“快进快退”表现 ,这一强化形式有定性意义 ;皮质期扫描应纳入小肾癌CT检查的常规步骤
Objective To evaluate the value of multislice spiral CT in the diagnosis of small renal cell carcinoma. Methods Fifteen cases of small renal cell carcinoma were analyzed by spiral CT and pathology. Results 13 cases of small solid renal cell carcinoma, enhanced scan cortical phase was significantly enhanced in 9 cases, mild to moderate enhancement in 4 cases; 2 cases of small cystic renal cell carcinoma, enhanced cortical wall, wall nodules, cysts separated significantly strengthen. Essence and renal pelvic strengthening rapid decline, was fast forward rewind change. All cases of pathological sinus blood rich (2 cases of small cystic renal cell carcinoma obvious, but the real part of the rich sinusoids). Conclusions Spiral CT multislice scanning is more effective than conventional CT in the diagnosis of small renal cell carcinoma. Most small renal cell carcinomas are markedly enhanced in the cortical phase and rapidly subsided in the parenchymal phase, showing “fast-forward and rewind” Qualitative significance; cortical scanning should be incorporated into small renal cell carcinoma of the conventional steps of CT examination