1病例介绍患者,男性,61岁,因左上腹不适1个月伴消瘦15 d于2002 年4 月9 日入消化内科。1月前无明显诱因出现食欲不振,左上腹不适,轻度乏力和头昏,无发热,无鼻出血及皮肤黏膜出血,无骨和关节疼痛。查体:体温正常。轻度贫血貌,浅表淋巴结不大,巩膜无黄染,胸骨无压痛,心肺无明显异 1 case description Patients, male, 61 years old, due to left upper quadrant discomfort 1 month with weight loss 15 d in April 9, 2002 into the digestive medicine. 1 month ago no obvious incentive to appear loss of appetite, left upper quadrant discomfort, mild fatigue and dizziness, no fever, no bleeding nose and skin mucosal bleeding, boneless and joint pain. Physical examination: normal body temperature. Mild anemia appearance, superficial lymph nodes, sclera no yellow dye, sternum no tenderness, no significant differences in cardiopulmonary