１９９２年以来，我院收治２例垂体腺瘤合并畸胎瘤。两种性质不同的原发性肿瘤同时发生在鞍区极为少见［１］，特报告如下。例１男，２５岁。３年前左眼视物模糊，２个月后右眼视物不清，半年来饮水增多（３Ｌ／ｄ），口渴多尿，乏力，视物范围变窄。头痛、恶心１个月，双... Since 1992, our hospital has treated 2 cases of pituitary adenoma with teratoma. Two kinds of primary tumors with different properties occur simultaneously in the sellar region, which is extremely rare [1]. Special reports are as follows. Example 1 Male, 25 years old. 3 years ago, the left eye had blurred vision. After 2 months, the right eye had unclear vision. The drinking water increased (3L/d) in the first half of the year, and there was more urination, lack of energy, and narrower visual range. Headache, nausea for 1 month, double...