隆突性皮肤纤维肉瘤的CT及MRI表现

发布时间：2018-01-11 21:01

本文关键词：隆突性皮肤纤维肉瘤的CT及MRI表现　出处：《中国医学影像技术》2017年04期 　论文类型：期刊论文

【摘要】：目的探讨隆突性皮肤纤维肉瘤(DFSP)的CT及MRI征象。方法回顾分析16例经手术病理结果证实的DFSP的影像资料(11例接受CT检查,5例接受MR检查),分析肿瘤的形态、CT及MRI特征。结果 DFSP多发于躯干及头颈部皮肤,呈不同程度隆起于皮肤表面,部分悬吊于皮外。16例中,结节肿块型12例、弥漫型4例。CT上肿块呈与肌肉等密度或稍低密度的实性占位,MRI上T1WI呈等/低信号,T2WI为稍高信号。肿瘤血供较丰富,增强扫描多呈渐进性中度至明显强化。病灶内征象包括"悬吊征"2例,"皮肤尾征"6例,"筋膜尾征"1例,"脂肪尾征"4例。结论 DFSP多表现为皮肤及皮下结节肿块型或弥漫生长型实性病变,不同形态其征象不同,但仍具有一定的特征性。
[Abstract]:Objective to investigate the CT and MRI features of Dermatofibrosarcoma Carina (DFSP). Methods 16 cases of DFSP confirmed by operation and pathology were retrospectively analyzed. Mr examination was performed in 5 cases to analyze the morphologic CT and MRI features of the tumor. Results DFSP mostly occurred in the trunk and head and neck of the skin and appeared to protrude to different degrees on the skin surface. Among them, 12 cases were nodular mass type and 4 cases were diffuse type. The mass showed iso-low signal intensity on T1WI with muscle isodensity or slightly lower density. T2WI showed slightly hyperintense signal. The blood supply of the tumor was abundant, and the enhanced scan showed progressive moderate to obvious enhancement. The lesions included "suspension sign" in 2 cases, "skin tail sign" in 6 cases and "fascia caudal sign" in 1 case. Conclusion most of DFSP features solid lesions of skin and subcutaneous nodular mass or diffuse growth type, and their appearance is different, but it still has some characteristics.
【作者单位】：广州医科大学附属第一医院放射科;
【分类号】：R739.5;R730.44;R445.2
【正文快照】： 隆突性皮肤纤维肉瘤(dermatofibrosarcoma　pro-tuberans,DFSP)是一种交界性纤维组织细胞性肿瘤, 多发于中青年患者躯干、四肢的皮肤真皮层。临床表现主要为无痛性皮下肿块。由于DFSP肿块生长缓慢,早期活动度好,故极易误诊为良性病变而行单纯肿块切除治疗,而切除不彻底易导致

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