儿童肝母细胞瘤的CT诊断

目的评价CT在儿童肝母细胞瘤诊断中的价值。方法总结12例临床影像资料完整、经活检或手术病理证实的肝母细胞瘤的临床CT表现。结果肿瘤位于肝右叶5例,左叶1例,跨越左右叶6例。平扫肿瘤均呈单发低密度,巨大肿瘤内可见多发裂隙状及不规则形更低密度区;肿瘤内斑片、点线状钙化6例。增强扫描9例肿瘤动脉期呈多个结节状或片状强化,密度高于肝组织,门脉期病灶呈低密度;3例肿瘤动脉期、门脉期均呈低密度;包膜强化4例,瘤内可见迂曲血管3例,伴有腹水1例。结论肝母细胞瘤的CT征象具有一定特征性,CT对肝母细胞瘤的诊断有重要价值。

CT Diagnosis of Children Hepatoblastoma

Objective To evaluate the value of CT scan in the diagnosis of hepatoblastoma.Methods CT data of twelve patients with hepatoblastoma proved by biopsy or operation and pathology were analysed.Results The tumors localized in right lobe in 5,left lobe in one and both left and right lobe involved in 6.The typical on plain CT scan,the tumors appeared as single low dense shadow and gap-like or irregular lower dense area could be seen in some huge tumors;the tumor showed focal and plaque calcification in 6 cases.On dynamic CT scan,hepatoblastoma demonstrated as nodular or plaque enhancement in arterial phase in 9 cases,the density was higher than that of the background of liver and low attenuation on portal venous phase;capsule enhancement in 4 cases; twisted arteries can be seen in 3 cases;with hydrothorax in 1 cases.In pro-venous phase,the lesion showed low density,3 cases showed low density in both arterial and portal venous phase.Conclusion Hepatoblastoma has certain characteristic CT findings,CT scan is of very important value in diagnosis of hepatoblastoma.