缺铁性贫血本身诊断并不难 ,但有时其病因确立较难 ,其中消化道肿瘤作为其病因之一常易被忽略以致漏诊。我院近年收治以缺铁性贫血为首发表现的消化道肿瘤 31例 ,报道如下。1　资料与方法1 1　一般资料　 1990年 1月至 1999年 6月间收治缺铁性贫血2 87例 ,住院过程中经检查发现 Iron deficiency anemia itself is not difficult to diagnose, but sometimes its cause is more difficult to establish, of which one of the causes of gastrointestinal cancer is often overlooked as a cause of missed diagnosis. In our hospital in recent years admitted to the first performance of iron deficiency anemia in 31 cases of gastrointestinal cancer, reported as follows. 1 Materials and Methods 1 1 General Information January 1990 to June 1999 admitted to iron deficiency anemia, 2 87 cases found during hospitalization found