腹部炎性肌纤维母细胞瘤的CT表现与病理对照分析

Abdominal Inflammatory Myofibroblastic Tumor: Comparison Analysis of CT Features and Pathologic Findings

目的对照分析腹部炎性肌纤维母细胞瘤(IMT)的CT表现与病理结果,旨在提高其影像诊断水平。方法经手术病理证实的10例腹部IMT,术前均经CT检查,对照术后病理结果总结分析肿瘤的生长方式、形态、密度以及CT增强表现。结果发生于肝脏2例,腹腔3例,脾脏、十二指肠降部上段、胃窦部、胆囊、膀胱各1例。CT表现为囊性肿块2例,囊实混合型3例,实性肿块5例。增强扫描实性部分呈均匀或不均匀轻中度或明显强化,囊性部分不强化,囊实混合型其内见不规则样、片状、花环状、分隔样强化,病灶与周围组织分界清晰。结论腹部IMT的CT表现特点对诊断及鉴别诊断可提供有价值的信息,但确诊需依赖病理组织学和免疫组织化学检查。

Objective To analyze the CT findings and pathologic results of abdominal inflammatory myofibroblastic tumor（IMT）. Methods Ten patients with abdominal IMT confirmed by surgery and pathology,including 3 males and 7 females, aged from 28 to 62 years, with a median age of 53 years were collected. All patients underwent CT examination. The growth pattern, shape, density and enhanced presentation of the tumors were analyzed. Results Two lesions located in liver, three in abdominal cavity, and one in spleen, descending duodenum, gastric antrum, gallbladder, bladder , respectively. The CT images showed cystic mass, solid mass and mixed mass in 2, 5, 3 lesions, respectively. The solid part was lightly, moderately or obviously enhanced with a irregular or ring or patchy shape. However, the cystic lesions showed no enhanced. There was clear boundary between all lesions and surrounding tissue. Conclusion CT features of abdominal IMT can provide valuable information to the diagnosis and differential diagnosis, but the confirmed diagnosis depends on the histopathological and immunohistoehemieal examination.