患者，男，６２岁，工人。主因排柏油便２０ｄ，每日排便３～４次，以“消化性溃疡伴出血”收入院。患者自诉体重下降５ｋｇ。实验室检查：大便为血便，红细胞满视野，肛诊有外痔，未触及肿块，指尖少许暗红色血迹。胃镜：全胃可见弥漫性片状充血，贲门口前右侧壁见一约０... Patient, male, 62 years old, worker. Mainly due to row of tar for 20 days, daily bowel movements 3 to 4 times, to “peptic ulcer with bleeding” income hospital. The patient complained of a weight loss of 5kg. Laboratory tests: Stool is bloody stools, red blood cells are full of vision, there are external hemorrhoids in the rectal examination, no masses are touched, and there is a little dark red blood in the fingertips. Gastroscope: diffuse flaky blood can be seen in the whole stomach, and the right side wall of the front door is about 0...