蝶窦位居颅底，与许多烦神经、血管等相毗邻，蝶窦的病变可能累及这些结构，单发蝶窦炎为数不多，并发外展神经麻痹，并以后者为首诊症状者甚为少见。我科1994和1995年各收治1例，现报告如下。亚病例报告侧1男，42岁。渐起右后枕部钝痛，复机2周，偶有鼻塞，无流涕，无后吸性涕 Sphenoid sinus at the base of the skull, and many trouble nerves, blood vessels and other adjacent, sphenoid sinus lesions may affect these structures, single sphenoid sinusitis is one of the few, complicated by abduction of nerve paralysis, and the latter for the first diagnosis of symptoms are very Rare. One case was admitted in 1994 and 1995 in our department. The report is as follows. Sub-case report side 1 male, 42 years old. Gradually right posterior occipital dull pain, complex machine 2 weeks, occasionally stuffy nose, no runny nose, no post-runny nose