1病例介绍患者,男,61岁,因“头晕伴晕厥、黑便8h”入院。患者8h前无明显诱因下出现头晕乏力,无头痛、发热,卧床休息出现晕厥1次,就诊于我院急诊科,解柏油样便1次,量约600g,无呕血。查急诊头颅CT未见明显异常。急诊胃镜示贲门部小弯侧见一约2cm×2cm溃疡状病变,溃疡边略欠光滑,结有褐色血凝块(图1A);十二指肠球部小弯侧见一约0.6cm×0.6cm溃疡,白苔,溃疡边尚光滑(图1B), 1 case description The patient, male, 61 years old, due to “dizziness with syncope, melena 8h ” admission. 8h before the patient had no obvious incentive to appear dizziness, fatigue, no headache, fever, bed rest syncope occurred 1 time, visit our emergency department, the solution of tarry will 1, the amount of about 600g, no vomiting. Emergency head CT examination no obvious abnormalities. Emergency gastroscopy shows a small curved side of the cardia door see a 2cm × 2cm ulcer lesions, ulcers slightly less smooth, with brown blood clots (Figure 1A); duodenal small curved side see a about 0.6cm × 0.6cm ulcer, white moss, smooth ulcers (Figure 1B),