患者女,21岁。主因解黑便、头晕、乏力10余天,于2015年6月6日入院。患者于10天前无明显诱因出现解成形柏油样便(量不详),伴头晕、乏力,无恶心、呕吐、呕血,无畏寒、发热,无咳嗽、咳痰,无腹痛、腹胀等不适,5天前就诊于外院行电子胃镜检查示:胃体肿瘤,血常规示红细胞2.46×10~(12)/L,血红蛋白62 g/L,未给予处理。既往体健,无特殊 Female patient, 21 years old. The main cause of melena, dizziness, fatigue more than 10 days, on June 6, 2015 admitted. The patient had no obvious cause 10 days before the formation of asphalted samples (an unknown amount), with dizziness, fatigue, no nausea, vomiting, hematemesis, no chills, fever, no cough, sputum, abdominal pain, abdominal distension and other discomfort, 5 A few days ago, he was seen in the hospital outside the hospital electron gastroscopy showed: gastric tumors, blood showed red blood cells 2.46 × 10 ~ (12) / L, hemoglobin 62 g / L, did not give treatment. Past physical health, no special