小儿肝母细胞瘤的CT、MRI诊断及其临床应用价值

CT and MRI Diagnosis of Hepatoblastoma in Children

目的:提高对小儿肝母细胞瘤(HB)CT、MRI表现的认识和诊断水平,评价其临床应用价值。材料和方法:37例经手术病理证实的HB,行CT/MRI检查并分析其表现。结果:CT表现:29例表现为单发类圆形低密度肿块、26例边界清、16例包膜完整、7例可见钙化和瘤内出血6例,增强扫描不均匀增强。MRI表现:20例表现为光滑类圆形肿块、T1WI呈低信号、T2WI呈高信号,5例瘤内出血,T1WI、T2WI均为高信号。结论:小儿HB的CT、MRI表现有特征性,对其早期诊断和预后判定具有重要价值。

Purpose：To improve the recognition of CT and MRI appearances of hepatoblastoma（HB）and evaluate their value.Materials and Methods：The CT and MRI manifestions of thirty-seven HB cases comfirmed by operation and pathology were retrospectively analyzed.Results：On CT images,HB appeared as an intrahepatic well-circumscribed round mass（n=29）,with pseudocapsule（n=16）,calcified foci（n=7）,hemorrhage（n=6）,and inhomogeneous density and heterogeneous enhancement.On MRI,HB appeared as an intrahepatic well-circumscribed round mass（n=20）,hypointense on T1WI and hyperintense on T2WI.The hemorrhage inside HB（n=5）was hyperintense on T1WI and T2WI.Conclusion：The CT and MRI features of HB are characteristic and helpful in early diagnosis and evaluating prognosis.