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目的探讨腹盆部促纤维组织增生性小圆细胞瘤(desmoplastic small round cell tumor,DSRCT)的影像表现,以提高对该肿瘤的认识及诊断水平。方法对6例经手术、活检病理证实的腹盆部DSRCT的影像表现进行回顾性分析。结果 6例CT表现为单个或多个较大肿瘤内可见坏死、囊变区,6例均可见多少不等钙化灶;增强扫描3例肿瘤实质部分呈轻至中度强化,3例明显强化,可见多发条状明显强化血管影。结论腹盆部DSRCT的CT表现有一定特征性,当青少年患者腹盆部出现多发大小不等肿块,内密度多不均匀,增强扫描肿瘤呈轻至中度强化,可提示DSRCT的诊断,确诊仍需进行病理及免疫组织化学检查。
Objective To investigate the imaging manifestations of desmoplastic small round cell tumor (DSRCT) in the abdomen to improve the understanding and diagnosis of this tumor. Methods The imaging findings of DSRCT in 6 cases confirmed by biopsy and pathology were retrospectively analyzed. Results The CT findings of 6 cases showed necrosis and cystic area in one or more large tumors, and 6 cases showed calcification in all cases. The enhancement of the parenchyma of the 3 cases was mild to moderate enhancement and 3 cases were significantly enhanced, Multiple strips of visible visible blood vessel shadow. Conclusions DSCTT of the abdominal basin has certain CT features. When the juvenile patients have different sizes of tumors in the abdomen, the internal density is not uniform, and the enhancement of the tumors is mild to moderate. It can be used to diagnose and diagnose DSRCT Needed for pathology and immunohistochemistry.