儿童肾透明细胞肉瘤的增强CT诊断特征

目的：研究分析儿童肾透明细胞肉瘤（CCSK）的CT表现,以提高对此病的认识。方法：搜集本院2006年1月1日-2010年12月31日经手术病理结果证实的CCSK病例11例,其中男7例,女4例,年龄10个月-7岁,平均3.2岁。选取手术及化疗前的第一次CT检查为评价对象,对其进行临床分期和影像学分析。结果：肿瘤的术前临床和影像分期为Ⅰ期2例,Ⅱ期3例,Ⅲ期4例,Ⅳ期2例;瘤体大小10.2 cm×8.9 cm×7.9 cm,密度不均匀,所有肿瘤内均有不同程度的液化坏死灶,其中4例呈虎斑状条纹,6例可见钙化灶;增强扫描强化程度为（43.3±14.6）HU;8例瘤体内可见多发细小肿瘤血管;6例发生转移。结论：CCSK具有瘤体较大、易于坏死液化呈特征性的虎斑状条纹、钙化多见、血供丰富及早期发生多系统转移等CT特点,具有一定的诊断和鉴别诊断价值。

Imaging findings of renal clear cell sarcoma in children

Objective:To study the CT findings of clear cell sarcoma of kidney(CCSK) in children,in order to improve the knowledge of this disease entity.Methods:The clinical materials from 01-01-2006 to 31-12-2010 were collected,there were 11 pediatric patients with surgery and pathology proved CCSK,the age ranged from 10 months to 7 years.MSCT scanning before operation and/or chemotherapy were used for the study,the imaging characteristics and staging were analyzed.Results:The clinical and imaging staging before surg...