例１，夏某，女，６１岁。近几个月来出现面色萎黄、乏力、心悸，继而全身轻度浮肿，伴吞咽困难。作食管钡餐透视（钡透），示通过欠畅，拟诊为食管癌，但未作抗癌治疗，病情继续加重，心悸、乏力于活动后更甚，浮肿加重。来院复诊，作血常规检查，发现该患者红细胞为１．... Example 1, Xia Mou, female, 61 years old. Appearing in recent months pale complexion, fatigue, heart palpitations, followed by mild body edema, accompanied by swallowing difficulties. For barium meal of esophageal perspective (Barium), showed through the poor, to be diagnosed as esophageal cancer, but not for anti-cancer treatment, the condition continued to aggravate, palpitations, fatigue even worse after activities, edema worsened. To the hospital referral, for blood tests, found that patients with red blood cells 1. ...