软组织肉瘤是一类少见的间质组织来源的恶性肿瘤,发病率不到肿瘤的1％。大约20％发生在腹部和盆腔,特别是后腹膜。本组回顾性分析78例腹部和盆腔的肉瘤的影像检查资料,总结其影像学检查与临床病理特点。 材料和方法 收集78例腹部和盆腔肉瘤的资料,其中男性41例,女性37例,年龄20～91岁,平均54.1岁。共105个病灶,其中原发病灶74个、 Soft tissue sarcoma is a rare malignant tumor of interstitial tissue, the incidence of less than 1% of tumors. About 20% occur in the abdomen and pelvis, especially in the retroperitoneum. This group of retrospective analysis of 78 cases of abdominal and pelvic sarcoma imaging examination data to summarize its imaging and clinicopathological features. Materials and Methods 78 cases of abdominal and pelvic sarcoma were collected, including 41 males and 37 females, aged from 20 to 91 years old, with an average age of 54.1 years. A total of 105 lesions, of which 74 primary lesions,