患者女,54岁。因纳差、进行性消瘦1年,双下肢水肿1个月来诊。1年前患者无诱因出现食欲下降,饭量逐渐减少伴腹胀,体重逐渐下降,半年内体重由70kg减至45kg,曾多次来本院消化科及省某医院就诊,多次进行过胃镜、全消化道钡餐透视,肝、胆、胰、脾B超及血糖检查未发现异常,临床诊断为 Female patient, 54 years old. Due to anorexia, progressive weight loss 1 year, double edema of the lower extremity to the clinic. 1 year ago, there was no incentive to reduce appetite, appetite decreased gradually with bloating, weight gradually decreased within six months from 70kg body weight reduced to 45kg, has repeatedly come to our hospital Department of Gastroenterology and the provincial hospital, multiple gastroscopy, all Gastrointestinal barium meal perspective, liver, gallbladder, pancreas, spleen and B-ultrasound examination showed no abnormalities, the clinical diagnosis of