胰腺实性假乳头状瘤的CT诊断

CT diagnosis of solid pseudopapillary tumor of pancreas

目的探讨胰腺实性假乳头状瘤(solid pseudopapillary tumor of pancreas,SPTP)的CT表现。方法回顾性分析经手术病理证实的11例SPTP的临床及CT影像学资料。结果 11例均为单发的囊实性肿块,4例位于胰头部,4例位于胰体部,3例位于胰尾部,增强后动脉期实性部分轻至中度强化,门静脉期及延迟期持续强化。9例包膜完整,4例伴出血钙化,1例伴胆总管扩张。结论 SPTP的CT表现有一定的特征性,有较高的临床诊断价值。

Objective To evaluate the CT fingdings solid pseudopapillary tumor of pancreas （SPTP）. Methods 11 cases of SPTP proved by pathology were analyzed retrospectively. Results SPTP manifested as a solitary mass composed of solid and polycystic parts, 4 lesions located in the head of pancreas, 4 in the body of pancreas, 3 in the tail of pancreas. In contrast-enhenced phase images, the solid parts showed mild to moderate enhencement in arterial phase, and continued to strengthen at portal vein and delayed phase. Complete capsule was showed in 9 cases, hemorrhage and calcification was showed in 4 cases, the dilation of the common bile duct was found in 1 case. Conclusion SPTP has certain characteristic CT imaging manifestations, which has high diagnostic value for clinic.