原发性肠脂垂炎的MSCT诊断价值

MSCT Diagnosis of Primary Epiploic Appendagitis

目的探讨多层螺旋CT(MSCT)多平面重组(multiple planar reconstruction,MPR)诊断原发性肠脂垂炎(primary epiploic appendagitis,PEA)的价值。资料与方法搜集PEA患者资料5例,行下腹部及盆腔CT扫描,均行剖腹探查手术,术后病理证实为PEA。结果 5例PEA均发生于结肠旁沟,其中位于盲肠周围1例,升结肠周围1例,乙状结肠周围3例。CT特征表现为结肠旁沟内圆形或椭圆形含脂肪密度肿块,增强后呈环形强化,且邻近肠壁无增厚及肠管周围无积液等征象。结论 MSCT MPR能够准确地显示结肠及结肠旁沟的解剖结构,并且能发现病变,确定病变的部位、大小、范围及与周围组织的关系,对PEA诊断具有决定意义。

Objective To explore the diagnostic value of multi-slice computed tomography（MSCT）in the primary epiploic appendagitis（PEA）.Materials and Methods A retrospective analysis of 5 patients with PEA proved by surgical operation was performed and 5 patients were evaluated with pelvic and lower abdominal MSCT.The CT findings of PEA including location,echogenicity,size,margin and vascularity were observed.Results All cases with PEA occurred around the colons.Among these cases,1cases were found around cecum,1 case around ascending colon,3 around sigmoid colon respectively.The CT features of PEA were characteristic,which were a round or oval pericolonic fatty lesion with a hyperdensity rim（ring sign） and adjacent fat stranding with an absence of other causes of inflammation.Conclusion PEA has characteristic MSCT appearances,MSCT MPR is of great value in the diagnosis of PEA.