患者　男 ,47岁 ,3年前起始返酸、嗳气 ,无腹痛 ,数日后出现柏油样便 ,在当地卫生院治疗好转后出院。以后曾反复出现黑便 ,先后 3次住院治疗。本次又因黑便来院就诊。查体 :贫血貌 ,右中上腹轻压痛 ,未扪及明确包块。Ｘ线钡餐检查 :食管贲门正常 ,胃未见龛影及充盈缺损。十二指 The patient was 47 years old. He returned to acid and hernia three years ago. He had no abdominal pain and developed tarry stools a few days later. He was discharged after receiving treatment at the local hospital. Later, there have been repeated black stools, has been hospitalized three times. This time, he came to the hospital because of black stools. Physical examination: anaemia appearance, right middle and upper abdomen light tenderness, failed and clear mass. X-ray barium meal examination: normal esophageal fontanelle, stomach no shadow and filling defect. Twelve fingers