巨大垂体腺癌导致颅内压增高者临床上较为少见,我科1990年3月～12月收治3例。现报告如下: 例1 男,37岁。因头晕5年,发作性头痛,恶心呕吐,双眼视力下降2个月入院。体检:皮肤细腻,视力左1.5,右0.3。视野呈双颞侧不规则缺损。左侧视乳头水肿,右侧原发性视神经萎缩,余阴性。CT扫描鞍窝扩大,骨质破坏,其内及鞍上池,鞍前,右鞍旁有一等密度肿物 Giant pituitary adenocarcinoma caused by increased intracranial pressure clinically rare, our department March 1990 ~ December were treated 3 cases. The report is as follows: Example 1 Male, 37 years old. 5 years due to dizziness, paroxysmal headache, nausea and vomiting, binocular vision decreased 2 months admission. Physical examination: delicate skin, visual acuity left 1.5, right 0.3. Visual field showed bilateral temporal irregular defect. Left papilledema, right primary optic atrophy, residual negative. CT scan of the ankle enlargement, bone destruction, which and saddle on the pool, saddle anterior, right supine with a first-degree density of tumor