CAJ | 학술논문

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。
목적：탐토이선실성가유두상류（SPTP）적CT표현。방법회고분석9례경병리증실위SPTP적림상급CT자료。결과SPTP균위변계청석적단발외돌성종괴，평균최대경7.01cm。병조균견완정포막，2례가견벽결절，포막、벽결절정“점진성강화”。낭성병조2례，정교균균적저밀도，1례견개화급섬유분격；낭실성4례，병조낭、실성비례대치상당，1례견개화。실성3례，이연조직밀도위주，내견소량산재낭변。종류실질동맥기위경-중도강화，정맥기진일보강화차교균균，강화범위증대，연지기정균균적지속강화；낭성병조급병조적낭변미견강화。결론SPTP적CT표현구유일정특정，MSCT평소급다기증강유조우진단。
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.