Objective To study its disease feature at various ages,the clinical manifestation,sex distribution and carcinoma character were compared in cases suffering from carcinoma of large intestine.

• 目的比较不同年龄阶段大肠癌患者在临床表现和性别分布及肿瘤特征等方面的差别，以期探讨各年龄段之间的患病特点。