目的:探讨CT对儿童肾母细胞瘤诊断及分期的价值。方法:回顾分析34例经手术、病理证实为肾母细胞瘤的CT表现。全部病例均进行了平扫与增强检查。肿瘤大部分源于一侧肾脏,也可双侧,上极多于下极。不均匀强化的实质性肿块伴坏死、出血、囊变,少数有钙化;肿瘤侵犯、压迫后残存肾呈新月形强化为典型CT表现。结果:本组术前定性诊断准确率为96.8%。腹膜后淋巴结转移最多见。结论:CT检查可准确显示肾母细胞瘤侵犯的范围,及时发现转移瘤,对肿瘤分期、制订治疗方案、估计预后提供重要依据。 Objective: To investigate the value of CT in the diagnosis and staging of childhood Wilms’ tumor. Methods: The CT findings of 34 cases of Wilms’ tumor confirmed by operation and pathology were retrospectively analyzed. All cases were carried out plain scan and enhanced examination. Most of the tumors originate from one side of the kidney, but also from both sides. Inhomogeneous enhancement of the substantive mass with necrosis, hemorrhage, cystic change, a few have calcification; tumor invasion, after compression residual crescent was enhanced as a typical CT manifestations. Results: The preoperative diagnostic accuracy was 96.8%. Retroperitoneal lymph node metastasis is the most common. Conclusion: CT examination can accurately show the extent of nephroblastoma invasion, and timely detection of metastases, tumor staging, the development of treatment options, provide an important basis for the estimation of prognosis.