目的：分析胰腺腺泡细胞癌（ACCs）的CT表现，以提高对本病CT征象的认识。资料与方法对9例经手术病理证实的行CT平扫及增强扫描的胰腺ACCs患者的影像学资料进行回顾性分析。结果9例ACCs患者主要影像学表现：①外生型膨胀性生长；②体积较大（平均直径4.7 cm），呈类圆形或椭圆形；③与正常胰腺相比，肿瘤增强扫描均表现为低密度影，实质部分呈渐进性强化；④病灶边缘可见薄层完整或不完整的强化环；⑤囊变或坏死多见。⑥胰管或胆管扩张及胰周血管包绕少见；⑦瘤内钙化、出血少见。结论 CT平扫及增强扫描对ACCs的定位及定性诊断具有重要意义。%Purpose To analysis the CT manifestations of acinar cell carcinomas of the pancreas (ACCs) in order to know more about its CT signs. Materials and Methods The plain and enhanced CT findings of 9 patients with AACs proved pathologically were analyzed retrospectively. Results The main image ifndings of the patients were as follows:①the pancreas grew with exophytic dilatability;②they tended to be large (average diameter was 4.7 cm), with round or oval shape; ③ the lesions showed hypodense on enhanced scan and the solid areas showed slight enhancement in the arterial phase compared with normal pancreas;④most lesions had uniform or partial thin enhanced ring;⑤most lesions demonstrated cystic or necrotic;⑥few had pancreatic/biliary ductal dilatation and peripancreatic involvement;⑦few showed internal calciifcation or intratumoral hemorrhage. Conclusion Plain CT scan and enhanced scan are signiifcant in locating and differentiating acinar cell carcinoma of the pancreas.
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