【摘要】 目的 探讨CT对儿童肾母细胞瘤诊断与分期的价值。方法 回顾性分析35例经手术、病理证实为肾母细胞瘤的CT表现。全部病例均行平扫与增强扫描。结果 肿瘤单侧多见，也可双侧。上极多于下极，也可全肾受侵。不均匀强化的实质性肿块伴坏死、出血、囊变，少数有钙化；残存肾呈新月形强化为典型CT表现。本组术前定性诊断准确率为93%。结论 CT检查可准确显示肾母细胞瘤的范围以及转移情况，对肿瘤分期、制订治疗方案、估计预后提供重要依据。

    【关键词】 儿童，肿瘤；肾母细胞瘤；断层摄影，X线计算机

    CT diagnosis of nephroblastoma in children

    HE Jian-yuan.Department of Radiology,The Fifth Affiliated Hospital of Zunyi Medical College,Zhuhai 519100,China

    【Abstract】 Objective To evaluate the diagnostic value and staging of nephroblastoma in children by computed tomography (CT).Methods CT manifestations of 35 cases of nephroblastoma proved by surgery and pathology were analyzed retrospectively.All the patients received plain scans and enhancement with intravenous contrast medium.Results Unilateral kidney involvement of the tumor seemed be found in most of the cases,bilateral invasion was also observed.Polar involvement of the kidneys was seen in most of the cases though whole kidney invasion was also the encountered.Mixed contrast-enhanced reparenchyma with hemorrhage and the remaining renal parenchyma exhibited a “new-moon shape” enhancement type which was caused by pressure and invasion of the tumor.Preoperative diagnostic accuracy was 93%.Conclusion CT is recognized as a useful technique for the detection of invasion area and metastasis,and provides important evidence for the treatment and prognosis judgement. ......