间皮细胞主要分布于胸膜、腹膜、心包膜、睾丸固有鞘膜及输卵管浆膜等处,间皮肉瘤多发生于上述部位,而发生于阴茎海绵体的间皮肉瘤罕见,迄今未见报导。作者收治一例,报告如下:患者,45岁,已婚,因会阴部无痛性肿块1年,伴排尿不畅3个月入院,查体:胸部及腹部未发现异常。在阴茎根部两睾丸之间有约9×8×7cm的肿块,质地坚硬,表面光滑,边界清楚,呈分叶状,无挤压痛,推之略活动,基底部与阴茎根部腹侧无明显界限。两侧睾丸正常,双侧腹股沟淋巴结无肿大。肛门指诊:直肠壁光滑.前列腺正 Mesothelium cells are mainly distributed in the pleura, peritoneum, pericardium, testis inherent sheath and tubal serosa and other places, mostly in the above sites mesothelioma sarcoma, and occurs in the penis cavernous mesothelioma rare, so far no report . The author admitted to a case, the report is as follows: The patient, 45 years old, married, painless mass due to the perineum for 1 year, with urination 3 months admitted poorly, examination: chest and abdomen found no abnormalities. In the penis between the two testes about 9 × 8 × 7cm mass, hard texture, smooth surface, clear boundary, lobulated, no squeezing pain, pushing the slightly active, basal and penile root ventral no significant limit. Normal testis on both sides, bilateral inguinal lymph nodes without swelling. Anal Fingering: Smooth rectal wall. Positive prostate