Conclusions: Fecal tumor M2-PK can be used as a valuable diagnostic marker in gastrointestinal cancer.It might also be useful in the diagnosis of gastrointestinal polyp.

• 结论：粪便肿瘤型M2-PK对胃肠道肿瘤和癌前状态之一的胃肠道息肉的诊断有一定临床意义。