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[目的]探讨胰腺腺泡细胞癌特征影像学表现。[方法]回顾性分析6例经病理证实的胰腺腺泡细胞癌患者CT资料。[结果]肿瘤位于胰头2例,体尾部3例,胰尾1例。主要影像学表现:①6例瘤体多为类圆形,边界多清楚,直径约4～16cm,平均直径7cm。②平扫多为囊实性肿块,直径较小(<5cm)者以实性结构为主,随直径增大,囊实性比例增大。③增强扫描瘤内实性结构早期轻度强化,后期呈渐进性强化,强化程度低或稍低于正常胰腺组织。囊性结构各期均无强化。④瘤内钙化1例。⑤2例肝转移,1例显示胰胆管侵犯并扩张,腹膜后淋巴结转移,1例脾静脉内癌栓。[结论]胰腺腺泡细胞癌影像学表现具有一定特征性,多为类圆形、边界清、乏血供肿瘤,内部可见钙化,较大时易出现囊变,常见肝转移。
[Objective] To investigate the imaging features of pancreatic acinar cell carcinoma. [Method] The CT data of 6 patients with pathologically confirmed pancreatic acinar cell carcinoma were retrospectively analyzed. [Results] The tumor was located in the head of the pancreas in 2 cases, body tail in 3 cases and pancreatic tail in 1 case. The main imaging findings: ① 6 cases of mostly round tumors, more clear boundaries, a diameter of about 4 ~ 16cm, the average diameter of 7cm. ② Mostly cystic solid mass, the smaller diameter (<5cm) with solid structure, with the diameter increases, the proportion of cystic solid increases. ③ enhance the solid structure of the early scan mild enhancement, the latter was gradual enhancement, less enhanced or slightly lower than normal pancreatic tissue. Cystic structure of all stages without strengthening. Intratumoral calcification in 1 case. ⑤ 2 cases of liver metastasis, 1 case showed pancreatic duct invasion and expansion, retroperitoneal lymph node metastasis, 1 case of splenic vein thrombosis. [Conclusion] The imaging features of pancreatic acinar cell carcinoma have some characteristics, mostly round, border clear, lack of blood for tumor, internal calcification, cystic change in larger cases, common liver metastases.