摘要: |
目的 探讨原发性腹膜后肉瘤的超声声像图特征。方法 回顾性分析经穿刺活检或手术病理证实的47例原发性腹膜后肉瘤的超声声像图特征。结果 47例原发性腹膜后肉瘤患者,单发42例,多发5例。经病理证实29例为脂肪肉瘤,13例为平滑肌肉瘤,4例为横纹肌肉瘤,1例为尤文肉瘤。肿瘤大小2.0-55.0cm,平均14.3±9.6cm。在灰阶超声上,32例表现为低回声,8例为稍强回声,7例为混合回声,16例内部回声不均匀,12例肿瘤内有无回声区,5例肿瘤内部伴钙化,26例边界清楚,21例边界不清楚,15例形态规则,32例形态不规则。CDFI显示35例肿瘤内可探及丰富点线状血流信号,12例未见明显血流信号。此外,18例肿瘤不同程度累及周边组织器官,4例腹膜后肉瘤伴腹膜后淋巴结转移,1例伴双侧髂总静脉及下腔静脉内瘤栓形成。结论 原发性腹膜后肉瘤常肿瘤体积较大,灰阶超声通常表现为腹膜后边界较清楚,形态不规则的低回声团块,部分肿瘤内可见坏死液化区或斑片状强回声,CDFI显示大多数腹膜后肉瘤内可见丰富点线状血流信号。 |
关键词: 腹膜后 肉瘤 超声检查 |
DOI: |
投稿时间:2020-11-30修订日期:2021-12-14 |
基金项目: |
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Sonographic characteristics of primary retroperitoneal sarcoma |
Tan Zhizhi,Li Jiawu,Luo Yan |
(West China Hospital of Sichuan University) |
Abstract: |
Objective To investigate the sonographic characteristics of the primary retroperitoneal sarcoma. Methods Ultrasonographic features of 47 patients with primary retroperitoneal sarcoma confirmed by biopsy or surgical pathology were retrospectively analyzed. Results Among all 47 primary retroperitoneal sarcomas, single lesion was found in 42 cases, while multiple lesions were found in 5 cases. Pathology confirmed 29 cases of liposarcoma, 13 cases of leiomyosarcoma, 4 cases of rhabdomyosarcoma, and 1 case of ewing’s sarcoma. The diameters of all tumors were 2.0-55.0cm, average 14.3±9.6cm. There were 32 cases presented hypoechoic, 8 cases with hyperechoic and 7 cases with complex echoic. Sixteen tumors were inhomogeneous, 12 cases were accompanied with no-echo areas, and 5 cases with calcification in the tumor. Well-defined boundary of tumors was found in 26 cases, and ill-defined boundary of tumors were found in the other 21 cases. Regular shape of tumors was found in 15 cases, while the other 32 cases were presented as irregular shape. Color Doppler flow imaging (CDFI) showed abundant tumor blood flow signals in 35 cases, and no obvious blood detected in the other 12 cases. In addition, 18 tumors invaded peripheral organs with different degrees, four cases accompanied with retroperitoneal lymph node metastasis, and 1 case with tumor thrombosis in bilateral common iliac vein and inferior vena cava. Conclusion Primary retroperitoneal sarcomas are usually present as large size, and grayscale ultrasound usually showed as well-defined hypoechoic masses with irregular shape in the retroperitoneum. Necrotic liquefaction areas or patchy calcification can be seen in some tumors, and abundant tumor blood flow signals can be detected in majority of retroperitoneal sarcomas on CDFI. |
Key words: Retroperitoneum Sarcoma Ultrasonography |