Table 1.
Clinicopathological features relative to location of sporadic colorectal cancers
| Clinicopathologic features |
Tumor location1 (No. of patients) |
P | ||
| R (n = 27) | L (n = 29) | P (n = 28) | ||
| Male/Female | 18/9 | 15/14 | 20/8 | 0.273 |
| Age | 62 ± 7 | 60 ± 12 | 62 ± 10 | 0.646 |
| AJCC stage2, I/II/III/IV | 4/13/6/4 | 4/15/6/4 | 4/10/9/5 | 0.926 |
| Tumor differentiation, WD | 22/5 | 29/0 | 24/4 | 0.021 (R vs L) |
| + MD/PD + muc | 0.052 (L vs P) | |||
| Synchronous adenoma, -/+ | 18/9 | 23/6 | 14/14 | 0.052 (L vs P) |
| LVN invasion, -/+ | 15/12 | 22/7 | 20/8 | 0.236 |
1
R: Cecum-splenic flexure of transverse colon; L: Splenic flexure of transverse colon-sigmoid colon; P: Rectum.
2
According to the American Joint Committee on Cancer (6th ed., 2001). WD, MD, PD, and muc, well-, moderately-, poorly-differentiated, and mucinous. LVN: Lymphovascular or neural invasion of tumor cells.