Methods In a retrospective study, the symptoms, signs, imaging techniques, additional laboratory results and operation regimen of 3 cases of primary malignant tumor of the seminal vesicle of were analysised retrospectively. 方法回顾分析了3例原发性精囊恶性肿瘤的症状、体征、检查结果及手术方案,并对患者进行随访,总结了原发性精囊恶性肿瘤诊断及治疗特点。