本组在381例大肠癌中遇青年人大肠癌55例,占14.4%。男性36例,女性19例;年龄最小16岁,21—30岁占91%;病程1月—2年以上。青年人与中老年人大肠癌的临床表现和肿瘤发生部位无明显差别。大体和组织学分型:青年人组中胶样型占56.4%(22/39例),粘液癌(包括粘液腺癌和印戒细胞癌)占54.6%(30/55 This group of 381 cases of colorectal cancer met 55 cases of young people with colorectal cancer, accounting for 14.4%. There were 36 males and 19 females; the youngest was 16 years old, 21-30 years old accounted for 91%; the course of illness was from January to 2 years. There was no significant difference in the clinical manifestation and tumor location of colorectal cancer between young people and middle-aged and old people. Gross and histological types: 56.4% (22/39) of the gel-like types in the young group, and 54.6% (30/55) of mucinous carcinoma (including mucinous adenocarcinoma and signet-ring cell carcinoma).