例1　男,39岁。因右侧鼻腔反复出血3d于1995年5月16日入院,入院后均排除由全身性疾病和血液系统疾病所致的出血。右侧鼻腔内大量鲜红色血液及血凝块,无明显出血点,行前鼻孔填塞术,未能有效制止出血,继而施行前后鼻腔填塞术,仍有少量血液自右泪小点处阵发性溢出,伴同侧搏动性头 Example 1 male, 39 years old. Bleeding on the right nasal cavity 3d on May 16, 1995 admitted to hospital were ruled out by systemic diseases and blood diseases caused by bleeding. A large number of bright red blood and blood clots in the right nasal cavity, no obvious bleeding point, preoperative nostril stuffing, failed to effectively stop the bleeding, and then before and after nasal packing, there is still a small amount of blood paroxysmal right tears point Spill, with ipsilateral pulsatile head