肿瘤致晕厥发作少见 ,最近笔者遇到 1例 ,现报道如下。1　病例报告患者 ,男 ,74岁 ,主因阵发性晕厥 3月余加重 1月 ,于 1999年 5月 2 5日入院。既往体健。入院查体 :BP16.0 / 10 .7k Pa,神清语利 ,一般情况可。气管右移 ,右肺中下野呼吸音弱 ,未闻及干湿性罗音。心率 84次 /min The incidence of tumor-induced syncope is rare, and the author recently encountered one case. The report is as follows. 1 case report patients, male, 74 years old, mainly due to paroxysmal syncope in March more than one month aggravated, admitted to hospital on May 25, 1999. Past health. Admission examination: BP16.0 / 10 .7k Pa, God’s clear language, generally available. The trachea shifted to the right, and the middle and lower lungs in the right lung had weak breath sounds. No dry and wet rales were heard. Heart rate 84 beats/min