Retrospective Study
Copyright ©The Author(s) 2021.
World J Clin Cases. Nov 16, 2021; 9(32): 9804-9814
Published online Nov 16, 2021. doi: 10.12998/wjcc.v9.i32.9804
Table 3 Anatomical sites of tumors presenting in early- and late-onset colorectal cancer patients in 2008-2019
Tumor sites
< 50-years-old, n (%)
≥ 50-years-old, n (%)
Total, n (%)
Right side45 (22.0)67 (23.1)112 (22.6)
Cecum13 (6.3)17 (5.9)30 (6.1)
Ascending colon27 (13.2)34 (11.7)61 (12.3)
Hepatic flexure1 (1.1)5 (1.2)6 (1.2)
Transverse colon4 (2.0)11 (3.8)15 (3.0)
Left side160 (78.0)223 (76.9)383 (77.4)
Descending colon17 (8.3)9 (3.1)26 (5.3)
Rectum84 (41.0)132 (45.5)216 (43.6)
Sigmoid13 (6.3)42 (14.5)55 (11.1)
Rectosigmoid36 (17.6)38 (13.1)74 (14.9)
Anus1 (1.1)1 (0.2)2 (0.4)
Anorectal9 (4.4)1 (0.3)10 (2.0)