纵隔内胚窦瘤１例姜宁西兰州军区总医院（兰州市７３００５０）内胚窦瘤来源于生殖细胞，好发于卵巢和睾丸。原发于纵隔者临床罕见。现报告１例如下。男性，３０岁。１９８９年８月２日以“肺癌？”入院。１９８９年２月无明确诱因感左肩疼痛，对症治疗无效。４月后出现左... Mediastinal Endoderm Sinus Tumor A Case of Jiangning Xiland Military General Hospital (Lanzhou 730050) Endodermal sinus tumors originate from germ cells and occur in the ovary and testis. It is rare in people with primary mediastinal disease. The report 1 is for example below. Male, 30 years old. On August 2, 1989, he was admitted to hospital with “Lung cancer?” In February 1989, there was no clear feeling of pain in the left shoulder and symptomatic treatment was ineffective. Left after April appears...