儿童炎性肌纤维母细胞瘤CT表现与病理对照  

Inflammatory Myofibroblastic Tumor in Child:Correlation of CT Findings and Pathology

作　　者：胡克非[1] 李旭[1] 胡俊[1] 汪松[1] 王悦[1] 王一真[1] 

机构地区：[1]安徽省立儿童医院放射科,合肥230054

出　　处：《临床放射学杂志》2011年第5期708-710,共3页Journal of Clinical Radiology

摘　　要：目的探讨儿童炎性肌纤维母细胞瘤的CT表现。资料与方法回顾性分析6例经手术证实的炎性肌纤维母细胞瘤,将CT表现与手术病理结果相对照,所有病例均行CT平扫和增强。结果发生于大网膜和小肠系膜各1例,右侧卵巢系膜1例,乙状结肠系膜2例,右上肺1例合并支气管囊肿。CT表现实性肿块2例,3例表现为囊实性肿块,1例完全囊性。钙化4例,3例呈大片状,1例呈条状钙化。增强扫描肿瘤实性部分呈明显强化2例,病理上肿瘤血管异常丰富,1例后方见增粗的血管,3例分房状肿瘤间隔有强化,而中心成分无强化区病理上往往是黏液变性,未见肿瘤包埋血管。病理上瘤组织大部分由梭形纤维细胞构成,可有黏液变性和坏死、钙化。黏液/血管型3例,梭形细胞型1例,纤维型2例。5例免疫组织化学检查,4例波形蛋白(Vimentin)染色和平滑肌肌动蛋白(SMA)染色均呈阳性。结论 CT检查对炎性肌纤维母细胞瘤诊断能提供有价值信息。Objective To investigate the CT findings of inflammatory myofibroblastoma in children.Materials and Methods The CT findings of 6 patients with pathologically proved of inflammatory myofibroblastoma were retrospectively analyed and compared with pathology.All cases were plain scan and enhance scan.Results 1 case located in omental,1 case located in small mesenteric,1 case located in right ovary mesangium,2 cases located in the sigmoid colon mesangium,1 case located in upper right lung and accompany bronchogenic cysts.CT manifestation：2 cases solid mass,3 cases solid-cystic mass,1 case completely cystic,4 cases calcification,3 cases of large patch,1 cases of strip.There were obvious strengthening after enhance scan in 2 cases solid tumor,the tumorous blood vessels were very rich in pathology,an enlarged vascular was seen on rear tumor in 1 case,there were interval strengthening in 3 cases,but the there were not enhanced in center,the un-enhanced regions were often mucus degeneration in pathology,the normal blood vessels were not embedded.Tomour tissue mostly consisted of spindle cell,could included mucus degeneration,necrosis and calcification on pathology.Pathological type：3 cases mucous/vascular type,1 case spindle cell type,2 cases fiber type.5 cases were checked by immunohistochemistry,the vimentin and smooth-muscle actin（SMA）demonstrated positivity in 4 cases.Conclusion CT examination could provide valuable information for inflammatory myofibroblastoma.

关 键 词：肿瘤 肌组织 病理学 体层摄影术 X线计算机 

分 类 号：R735[医药卫生—肿瘤]