体表软组织内非典型脂肪瘤样肿瘤超声表现与病理对照分析  

Comparative Analysis of Ultrasonography and Pathology of Atypical Lipomatoid Tumors in Body Surface Soft Tissue

作　　者：刘勋[1] 陈霰[1] 陈敬一 陈宗南 贾建文 Liu Xun;Chen Xian;Chen Jingyi;Chen Zongnan;Jia Jianwen(Department of Ullrasound,Tianjin Fifth Central Hospital,Tianjin 300450,China)

机构地区：[1]天津市第五中心医院超声科,天津市300450

出　　处：《中国超声医学杂志》2021年第8期951-953,共3页Chinese Journal of Ultrasound in Medicine

摘　　要：目的分析体表软组织内非典型脂肪瘤样肿瘤(ALT)超声特征,与病理结果进行对照分析其超声诊断价值,并初步了解ALT超声造影表现。方法回顾分析经手术病理证实的15例ALT临床资料及超声表现,记录肿瘤发病解剖层次及体表部位、大小、回声、边界、形态、后方回声、血流信号,并分析5例ALT超声造影表现。结果 15例ALT均为单发体表肌层肿物,其中下肢9例,上肢2例,颈部1例,肩部1例,腹壁1例,臀部1例,肿物最大径线9.5~16.5 cm,高回声为主15例(100%),边界清晰13例(86.67%),边缘形态不规则/欠规则15例(100%),伴有密集线状强回声15例(100%),后方回声无变化14例(93.33%),所有肿块内均未见钙化及液化区,CDFI显示Ⅰ级2例,Ⅱ级10例,Ⅲ级3例。5例ALT超声造影表现为肿块整体非均匀性高增强(存在造影剂高灌注缺损区)。结论体表软组织ALT好发于下肢肌层内,体积偏大,超声多表现为高回声为主、边界清晰、形态不规则、内部多伴较多线状高回声、血供多较丰富。超声造影能够提供一定的辅助诊断。Objective Analyze the ultrasound characteristics of atypical lipoma-like tumors(ALT) in the soft tissues of the body surface, and compare the pathological results with the ultrasound diagnostic value, and initially understand the performance of ALT ultrasound contrast. Methods The clinical data and ultrasound manifestations of 15 ALT patients admitted to our hospital and confirmed by surgery and pathology were retrospectively analyzed. The anatomical level and body surface site, size, echo, boundary, shape, posterior echo and blood flow signal of tumor were recorded, and the contrast-enhanced ultrasound manifestations of 5 ALT patients were analyzed. Results 15 cases of ALT were all single body surface muscle layer tumors, including 9 cases of lower limbs, 2 cases of upper limbs, 1 case of neck, 1 case of shoulder, 1 case of abdominal wall, 1 case of buttocks, and the maximum diameter of the tumor was 9.5-16.5 cm, high echo mainly in 15 cases(100%), clear boundaries in 13 cases(86.67%), irregular edge shape/under regularity in 15 cases(100%), and dense linear echo in 15 cases(100%), There were no changes in the posterior echo in 14 cases(93.33%). There were no calcified and liquefied areas in all the tumors. CDFI showed 2 cases of grade Ⅰ, 10 cases of grade Ⅱ, and 3 cases of grade Ⅲ. Five cases of ALT ultrasonography showed a high degree of overall non-uniformity of the mass(the presenceof a high contrast perfusion defect area). Conclusions The surface soft tissue ALT is more likely to occur in the muscular layer of the lower extremity, and the volume is relatively large. Ultrasound is mostly characterized by high echo, clear boundaries, irregular shapes, more internal high linear echo, and more abundant blood supply. Ultrasound contrast can provide certain auxiliary diagnosis.

关 键 词：超声 软组织 非典型脂肪瘤样肿瘤 高度分化的脂肪肉瘤 

分 类 号：R738.6[医药卫生—肿瘤]