患者男，41岁。因皮肤粘膜反复出血、界闻、牙龈出血1个月，加重2天件头昏、乏力、精神差、食欲差、腹胀就诊。既往曾诊为“胃溃疡”．内科保守治疗效果不佳后，行胃大部分切除术。术后伤口一期愈合。本次入院时体检和实验室检查未见其它阳性体征。心电图示窦性心动过速，心肌 Male patient, 41 years old. Due to repeated bleeding of the skin and mucous membranes, debridement, and bleeding gums for 1 month, aggravated 2 days of dizziness, fatigue, poor spirit, poor appetite, and bloating. Previously diagnosed as “stomach ulcer”. After the conservative treatment of internal medicine was ineffective, a major gastrectomy was performed. The wounds healed for the first time after surgery. There were no other positive signs during physical examination and laboratory examination at the time of admission. Electrocardiogram shows sinus tachycardia, myocardium