胰腺实性假乳头状瘤的多层螺旋CT诊断价值

目的探讨胰腺实性假乳头状瘤（SPTP）的多层螺旋CT表现及特点,提高对该病的认识和诊断准确率。方法回顾性分析11例经手术及病理证实的SPTP患者的CT表现及临床资料。结果 11例患者均为年轻女性,无黄疸及其他临床症状。CT平扫病灶表现为圆形或类圆形的囊实性肿块,位于胰腺边缘部分,其中8例病灶较大,向胰腺外生长,另3例病灶较小,局限性于胰腺内部;2例位于胰头部的巨大病灶伴有胰管轻度阻塞扩张;所有病灶增强后实性部分均有强化,动脉期轻度强化,静脉期强化明显,囊性部分无强化,病灶均可见强化明显、完整的假包膜,10例与周围组织分界清晰,仅一例病变与网膜粘连。结论 SPTP的MSCT表现有一定的特征性,静脉期强化明显于动脉期,螺旋CT检查对其诊断和鉴别诊断有重要的价值。

Solid Pseudopapillary Tumors of the Pancreas:Evaluation by MSCT

Objective To study multi-slice spiral CT （MSCT） findings and features of solid pseudopapillary tumors of the pancreas （SPTP） and to improve the level of understanding and diagnosis. Methods The CT features and clinical materials of 11 cases with SPTP were retrospectively analyzed, which were proved by surgery and pathology. Results All the 1 1 cases happened in women, none with jaundice. Plain CT scan showed a round or oval cystic-solid mass, all on edge of pancreas. Three of the lesions were smaller, localized in the pancreas￡〉eight of the lesions were larger, prominent out of the pancreatic contour. Pan- creatic duct slightly dilated in two cases, which were huge in the head of pancreas. After contrast administration, the solid part of the tumor enhanced while the cystic part did not. The solid component slightly enhanced in the arterial phase and markedly enhanced in the venous phase. Conclusion MSCT findings and manifestation of SPTP have certain characteristics, which was that the enhance CT value in intravenous phase higher than that of arterial phase. MSCT play an important role on SPTP diagnosis and differentiation.