Aims: To evaluate the significance of fecal tumor M2-PK in the detection of gastrointestinal cancers and precancerous conditions, and in the staging of gastrointestinal cancers.

• 目的：评价粪便肿瘤型M2-PK在胃肠道肿瘤和癌前状态的检测以及肿瘤分期中的意义。