Table 1 Clinicopathologic Data
|  | CRC n = 45 | Adenoma n = 21 |
|---|---|---|
Enrollment | ||
 Retrospective | 36 (80) | 14 (67) |
 Prospective | 9 (20) | 7 (33) |
Age at surgery (yrs) | 60 (54–70) | 63 (55–72) |
Gender | 23 Male (51) | 12 Male (57) |
22 Female (49) | 9 Female (43) | |
Tumor site | ||
 Colon | 35 (78) | 17 (80) |
 Rectum | 10 (22) | 4 (20) |
Gross tumor size (cm) | 3 (2.6–5.5) | 2.8 (1.7–5.5) |
Histopathologic Features | ||
 Well differentiated/low grade | 38 (84) | 16 (76) |
 Poorly differentiated/high grade | 4 (9) | 5 (24) |
 Mixed | 2 (4) | - |
Staging | ||
 T Stage |  |  |
  T0 | 0 | 21 (100) |
  T1 | 8 (18) |  |
  T2 | 7 (16) |  |
  T3 | 23 (51) |  |
  T4 | 7 (16) |  |
 N Stage |  | - |
  N0 | 25 (56) |  |
  N1 | 10 (22) |  |
  N2 | 10 (22) |  |
 M Stage |  | - |
  M0 | 38 (80) |  |
  M1a | 7 (20) |  |
  M1b/1c | 0 |  |
Neoadjuvant therapy | 10 (22) | - |