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目的:总结肝脏母细胞(HB)瘤在CT上的形态学特征。方法:对5例经手术病理证实的HB瘤病例进行腹部CT平扫,3例加作增强扫描,结合文献分析HB瘤的CT表现。结果:肿物位于肝右叶3例,肝左叶1例,肝左右叶1例。HB瘤大多表现为肝内单个球形或分叶状融合的实性肿块,1例为多发结节。2例肿物呈外生型,4例边缘清楚,3例包膜完整。肿瘤密度多不均匀,2例可见点状钙化,增强后可不均匀或弧线形、网格状强化。全部病例肿瘤以外肝实质正常。1例见下腔静脉瘤栓,1例见腹膜后淋巴结及大网膜转移。结论:HB瘤的CT表现有一定特异性,对于诊断帮助较大。
Objective: To summarize the morphological features of liver tumor on CT. Methods: 5 cases of pathologically confirmed cases of HB by abdominal plain CT scan, 3 cases plus enhanced scanning, combined with the literature analysis of CT findings of HB tumor. Results: The tumor was located in 3 cases of right lobe, 1 case of left lobe and 1 case of left and right lobe. Most of the tumors of the liver showed a solid mass with single spherical or lobulated fusion in the liver, with multiple nodules in one case. 2 cases of tumor was exogenous, clear edge in 4 cases, 3 cases complete capsule. Tumor density and more uneven, 2 cases showed punctate calcification, increased after the uneven or arc-shaped, grid-like enhancement. All cases of liver outside the normal liver parenchyma. 1 case of inferior vena cava tumor suppositories, 1 case of retroperitoneal lymph nodes and omental metastasis. Conclusion: The CT manifestations of HB have certain specificity, which is helpful to diagnosis.