横结肠系膜肿瘤性病变的CT定位诊断

目的 结合横结肠系膜解剖,探讨CT定位诊断横结肠系膜肿瘤性病变的价值.方法 回顾性分析1998年5月至2007年12月26例临床资料和CT资料完整的经手术和(或)病理证实的横结肠系膜肿瘤性病变的病例,着重观察病变与邻近结构的关系.结果 ①26例中非霍奇金淋巴瘤4例,转移性平滑肌肉瘤4例,间质瘤1例,脂肪肉瘤1例,平滑肌肉瘤2例,横结肠癌侵犯横结肠系膜2例,胰腺癌侵犯横结肠系膜12例.②22例横结肠系膜单发肿瘤性病变中,病变上缘均超过十二指肠水平段上缘,肠系膜上动脉和(或)上静脉移位21例.横结肠系膜血管被包绕22例,横结肠系膜血管增粗、边缘模糊26例.③26例横结肠系膜肿瘤性病变有不同的CT表现.结论 根据横结肠系膜肿瘤性病变与邻近结构的关系,可做出横结肠系膜肿瘤性病变的定位诊断.

The value of CT in localizing transverse mesocolonic neoplasm lesion

Objective To investigate the value of CT in localization diagnosis of the neoplasm of the transverse mesocolon.Methods 26 cases of neoplasm of the transverse mesocolon proved by surgical pathology or pathology from May 1998 to Dec.2007 were retrospectivley studied.All cases underwent CT scan.Image analysis was focused on the relation between neoplasm and SMA,SMV,middle colonic vessels,duodenum,and the small bowel.Readipose sarcoma (n=1),transverse colonic carcinoma invaded the transverse melocolon (n=2),pancreatic carcinoduodenum in 22 cases.Superior mesenteric artery and vein were displaced in 21 cases;middle colonic vessels were showed different CT manifestation.Conclusion The relation between neoplasm and adjacent structure is helpful for the localizing neoplasm of the transverse mesocolon.