卵黄囊瘤发生在松果体者罕见。到目前为止,国内仅见三例报告,我们于1985年又发现一例,报告如下。患者女,23岁,1984年2月出现多尿多饮症状,临床诊断为尿崩症。经服DHCT后症状好转.同年顺产一子后感头痛、嗜睡、腰及全身疼痛,渐消瘦.继之出现听力下降、耳聋;双目视物不清和 Occurrence of yolk sac tumors in the pineal gland is rare. So far, only three cases have been reported in China. We found another case in 1985 and the report is as follows. The patient, 23 years old, developed polyuria in February 1984 and had a clinical diagnosis of diabetes insipidus. Symptoms improved after taking DHCT. After the birth of a child in the same year, headache, drowsiness, lumbar and body aches and pains followed by gradual weight loss. Hearing loss and deafness followed; binocular vision was unclear and