多层螺旋CT在肠系膜脂膜炎诊断中的应用

目的总结分析肠系膜脂膜炎的CT表现,并复习相关文献以提高对本病的认识和诊断。方法搜集经腹腔镜/穿刺活检病理证实为肠系膜脂膜炎患者6例,术前均未正确诊断,回顾性分析其CT表现;其中4例平扫+双期动态扫描,2例只行平扫。结果 6例表现为围绕肠系膜根部血管周围云雾状脂肪密度肿块,病灶与腹腔内及腹膜后脂肪分界清楚,增强扫描未见明确强化。6例可见"肿瘤假包膜"表现为病灶外围一圈薄层索条状软组织密度影包绕;4例见"脂肪环"即血管周围可见正常的脂肪组织。2例病灶内见结节,1例腹膜后可见淋巴结显示,4例有腹部手术病史。结论肠系膜脂膜炎的CT表现具有一定的特征性,MSCT特征结合临床症状有助于本病的诊断。

Multislice spiral CT in the diagnosis of mesenteric panniculitis

Objective To analyze the CT appearance of mesenteric panniculitis.Methods Unenhanced（6）and dual-phase contrast-enhanced（4）CT of 6 patients with mesenteric panniculitis confirmed by laparoscopic or percutaneous biopsy was analyzed retrospectively.Results Four of the six patients had previous abdominal surgery.In all 6 patients,CT showed masses at the root of the mesentery with cloudy perivascular fat density,pseudocapsules,clear boundaries between the peritoneal and retroperitoneal fat,and no contrast enhancement.A“fat ring”of normal perivascular adipose tissue was visible in 4 patients.Other findings included nodular lesions（2）and retroperitoneal lymphadenopathy（1）.Conclusion CT characteristics in the clinical setting of previous abdominal surgery can aid diagnosis of mesenteric panniculitis.