附睾间皮瘤是生殖系较为罕见的良性肿瘤。我院1980～1989年收治4例,现报告如下。本组4例,年龄28～51岁,均因阴囊部肿痛或附睾肿块就诊。病程7天至4年。左侧3例,右侧1例。体检:4例均在附睾尾部触及蚕豆大,质硬、界限清楚、表面光滑的肿物。治疗采用附睾连同肿块切除术。病理诊断均为附睾间皮瘤。镜下观察:无真正包膜,边缘为平滑肌和疏松的纤维及丰富的血管所环绕。肿瘤主要由腺上皮细胞和纤维间质组成。上皮细胞排列呈腺管状及条索状,相互吻合成丛状。腺腔扩张的上皮细胞变扁平,类似淋巴管的内皮细胞。条索状结构的细胞呈空泡状及“印戒状”。 Epididymal mesothelioma is a relatively rare reproductive system of benign tumors. Our hospital from 1980 to 1989 admitted to 4 cases, are as follows. The group of 4 patients, aged 28 to 51 years old, were due to swelling of the scrotum Department of pain or epididymal mass treatment. Duration of 7 days to 4 years. Left in 3 cases, right in 1 case. Physical examination: 4 cases were in the epididymis touch the broad bean, hard, clear boundaries, smooth surface of the tumor. Treatment with epididymal in conjunction with tumor resection. Pathological diagnosis of epididymal mesothelioma. Microscopic observation: no real envelope, the edge of the smooth muscle and loose fibers and rich blood vessels surrounded. Tumor mainly by the glandular epithelial cells and fibrous stroma composition. Epithelial cells were arranged in glandular tubular and cord-like, consistent with each other into a plexiform. The glandular dilated epithelial cells become flattened similar to the lymphatic endothelial cells. The cord-like cells were vacuolar and “signet-shaped”.