胰腺实性假乳头状瘤的CT征象分析

目的：探讨胰腺实性假乳头状瘤（SPTP）的CT征象,提高对本病的诊断能力。方法：回顾性分析经手术和病理证实的10例SPTP患者的CT资料,其中女8例,男2例,年龄12-54岁,平均27.2岁。10例患者术前均行螺旋CT胰腺平扫与增强扫描。结果：10例SPTP均表现为孤立肿物,其中5例位于胰头,4例位于胰尾,1例位于胰体。3例肿块呈类圆形,4例呈卵圆形,3例呈不规则形,肿块最大径2.1-8.6 cm,平均6.5 cm。肿瘤全部由实性和囊性成分构成,以实性组织为主者5例,囊、实结构比例相近3例,以囊性结构为主者2例。动态增强扫描实性部分呈渐进性强化,囊性部分无强化。5例肿瘤的实体部分可见线形、小结节或斑块状钙化。1例肿瘤内可见液体-碎屑平面及＂浮云征＂。1例囊性为主肿瘤CT平扫囊性成分中见片状高密度影,术后病理证实为陈旧性出血。7例肿瘤有完整包膜,增强后强化明显,3例包膜不完整,手术见与周围组织有粘连,其中1例镜下可见侵犯邻近下腔静脉旁脂肪组织及十二指肠壁。肿瘤引起胰管增宽与肝管扩张各1例。所有病例均未见腹腔淋巴结肿大及远处脏器转移。结论：胰腺实性假乳头状瘤主要见于青年女性,具有相对特征的CT表现,即胰腺较大囊实性肿物,边缘清晰,实性部分呈渐近性强化,少数伴出血、钙化。

CT findings analysis of solid pseudopapillary tumor of the pancreas

Objective:To demonstrate the CT features of solid pseudopapillary tumor of the pancreas(SPTP) so as to improve the imaging diagnostic abilities.Methods:The CT materials of 10 cases with surgery and pathology proved SPTP were retrospectively analyzed,including 8 females and 2 males,their age ranged from 12 to 54(average being 27.2).All of the 10 cases underwent spiral CT scan and also with contrast enhancement before surgery.Results:All of the 10 cases were isolated mass.They were located at the head(n=5),ta...