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目的探讨小肾癌的CT表现,分析其影像特征,评价螺旋CT增强扫描对小肾癌的诊断价值。方法回顾分析35例经手术病理证实的小肾癌CT表现,35例均行CT平扫及动态增强扫描,增强扫皮质、实质及肾盂排泄三期。结果平扫等密度11,稍低密度24例,密度均匀或不均匀,增强扫描30例表现为皮质期明显强化,实质期强化减弱,肾盂期更低,肿瘤强化呈“快进快出”特点。5例动脉期轻-中度强化,实质期强化减弱,肾盂期更低。结论小肾癌的CT表现有一定特征性,螺旋CT增强扫描对小肾癌的检出率较高,对小肾癌的诊断和鉴别诊断有很大价值。
Objective To investigate the CT findings of small renal cell carcinoma (RCC) and analyze its imaging features and evaluate the diagnostic value of enhanced spiral CT in small renal cell carcinoma. Methods The CT findings of 35 cases of small renal cell carcinoma confirmed by surgery and pathology were retrospectively analyzed. All 35 cases underwent CT scan and dynamic contrast-enhanced scan to enhance the corticosteroid, parenchymal and renal pelvis excretion. Results The average density of the plain scan was 11, the density was even lower in 24 cases, and the density was even or uneven. In 30 cases of enhanced scanning, the cortical phase was significantly enhanced, the parenchymal phase was weakened, the renal pelvis was lower, Features. In 5 cases, the arterial phase was mild to moderate, the parenchymal phase was weakened and the renal pelvis was lower. Conclusion CT findings of small renal cell carcinoma have certain characteristics. The detection rate of small renal cell carcinoma by spiral CT enhanced scanning is high, which is of great value in the diagnosis and differential diagnosis of small renal cell carcinoma.