目的探讨原发性肌肉软组织包虫囊肿的CT表现。资料与方法分析11例经手术病理证实的肌肉软组织包虫囊肿的CT表现。结果11例中,发生在颈部3例,胸壁2例,腰大肌3例,背部1例,腹壁1例,臀部1例;其中单发6例,多发5例,共17枚病灶。CT平扫均表现为单囊型包虫囊肿,呈圆形或卵圆形囊性低密度肿物,密度均匀,接近水的密度,边缘光滑清楚,周围组织有受压、推移改变。增强扫描囊肿无强化。结论CT可显示肌肉软组织包虫囊肿的部位、大小、形态和内部特征。 Objective To investigate the CT findings of hydatid cyst of primary muscle and soft tissue. Materials and Methods CT findings of 11 cases of muscle and hydatid cyst confirmed by surgery and pathology were analyzed. Results Among the 11 cases, there were 3 cases in the neck, 2 cases in the chest wall, 3 cases in the psoas muscle, 1 case in the back, 1 case in the abdominal wall and 1 case in the buttocks. Among them, 6 cases were single and 5 cases were multiple, with 17 lesions. CT showed single cystic hydatid cyst, round or oval cystic low-density mass, uniform density, close to the density of water, the edge is smooth and clear, the surrounding tissue with pressure, change over time. Enhanced scan Cyst no enhancement. Conclusion CT can show the location, size, shape and internal features of hydatid cyst of muscle and soft tissue.