Introduction
Materials and methods
Patients, samples, and sectional tissue analysis
Parameters | Resultsa |
---|---|
Gender | |
Female | 27/117 (23.08%) |
Male | 35/182 (19.23%) |
Age (year, mean, range) | 56.69 ± 11.74 (25–86) |
Lymph nodes retrieved (mean ± SD, range) | 16.16 ± 9.12 (2–75) |
Location of tumor | |
Colon | 24/138 (17.39%) |
Rectum | 38/161 (23.60%) |
Histologic grade (G)b | |
G1 | 2/17 (11.76%) |
G2 | 32/195 (15.42%) |
G3 | 28/87 (32.18%) |
Invasive depth | |
T1 | 0/7 (0.00%) |
T2 | 1/50 (2.00%) |
T3 | 51/217 (26.27%) |
T4 | 10/25 (40.00%) |
Lymph node metastasis | |
N0 | 9/181 (4.97%) |
N1 | 24/68 (35.29%) |
N2a | 18/34 (52.94%) |
N2b | 11/16 (68.75%) |
Distant metastasis | |
M0 | 55/289 (19.03%) |
M1 | 7/10 (70.00%) |
LVI | |
Negative | 39/243 (16.05%) |
Positive | 23/46 (50.00%) |
Perineural invasion | |
Negative | 28/225 (12.44%) |
Positive | 34/74 (45.94%) |
TNM stage | Totala | |
---|---|---|
I | T1N0M0 | 0/7 (0) |
I | T2N0M0 | 1/41 (2.44%) |
IIa | T3N0M0 | 8/123 (6.50%) |
IIb | T4N0M0 | 1/8 (12.50%) |
IIIa | T2N1M0 | 0/8 (0) |
IIIb | T3N1M0 | 15/46 (32.61%) |
IIIb | T3N2aM0 | 12/25 (48.00%) |
IIIc | T3N2bM0 | 10/15 (66.67%) |
IIIb | T4N1M0 | 5/12 (41.67%) |
IIIc | T4N2aM0 | 1/1 (100.00%) |
IIIc | T4N2bM0 | 2/3 (66.67%) |
IV | T3N0M1 | 0/1 (0) |
IV | T3N1M1 | 2/2 (100.00%) |
IV | T3N2M1 | 3/4 (75.00%) |
IV | T4N2M1 | 1/2 (50.00%) |