胰腺实性假乳头状瘤的CT表现  

CT Features of Solid Pseudopapillary Tumor of the Pancreas

作　　者：钟熹[1] 汤日杰[1] 李建生[1] 林国辉[1] 李颖慧[1] 洪旋阳 

机构地区：[1]广州医科大学附属肿瘤医院放射科,广东广州510095

出　　处：《中国CT和MRI杂志》2015年第9期90-92,102,共4页Chinese Journal of CT and MRI

摘　　要：目的探讨胰腺实性假乳头状瘤(SPTP)的CT表现。方法回顾分析9例经病理证实为SPTP的临床及CT资料。结果SPTP均为边界清晰的单发外突性肿块,平均最大径7.01cm。病灶均见完整包膜,2例可见壁结节,包膜、壁结节呈"渐进性强化"。囊性病灶2例,呈较均匀的低密度,1例见钙化及纤维分隔;囊实性4例,病灶囊、实性比例大致相当,1例见钙化。实性3例,以软组织密度为主,内见少量散在囊变。肿瘤实质动脉期为轻-中度强化,静脉期进一步强化且较均匀,强化范围增大,延迟期呈均匀的持续强化;囊性病灶及病灶的囊变未见强化。结论SPTP的CT表现具有一定特征,MSCT平扫及多期增强有助于诊断。Objective To explore the CT features of solid pseudopapillary tumor of the pancreas （SPTP）. Methods 9 cases of SPTP proved by pathology were included, and their clinical and CT data were analyzed retrospectively. Results All SPTP represented protruding single masses with clear boundary, the mean diameter was 7.01 cm. Complete capsule was seen in all lesions, 2 lesions with mural nodule, capsule and mural nodules showed the feature of ＂progressive enhancement＂. 2 lesions appeared cystic, presenting as homogenous low density mass, 1 lesion with calcification. 2 lesions appeared Cystic-solid mixing, presenting as similar proportion of solid and cystic regions, 1 lesion with calcification. 3 lesions appeared cystic-solid were mainly composed of soft tissue with a few scattered cystic regions. Essence of tumor showed low-grade or medium enhancement in arterial phase, and appeared to further and more uniform enhancement with greater range in venous phase, essence continued to enhance homogeneously in delay period. No enhancement was seen in cystic regions and cystic lesions. Conclusion There were some typical CT features of SPTP, Non-enhanced and multiphase contrast-enhanced CT scanning were useful to its diagnosis.

关 键 词：实性假乳头状瘤 胰腺肿瘤 体层摄影术 X线计算机 

分 类 号：R735.9[医药卫生—肿瘤] R445.3[医药卫生—临床医学]