Table 1.
Clinicopathologic Characteristics of 49 Cases of Colonic Medullary and Poorly Differentiated Adenocarcinoma
| Variable | MC (n = 16) | PDC (n = 33) | P-value |
|---|---|---|---|
| Age at surgery (y) | NS | ||
| Mean | 75.3 | 69.3 | |
| Range | 55–89 | 33–89 | |
| Sex | 0.004 | ||
| Male | 2 (13%) | 19 (58%) | |
| Female | 14 (87%) | 14 (42%) | |
| Locationa | NS | ||
| Right colon | 11 (69%) | 15 (45%) | |
| Left colon | 5 (31%) | 18 (55%) | |
| Tumor stageb | 0.002 | ||
| I | 3 (19%) | 3 (9%) | |
| II | 7 (44%) | 4 (12%) | |
| III | 5 (31%) | 18 (55%) | |
| IV | 1 (6%) | 8 (24%) |
a
Cutoff for right vs left is hepatic flexure
b
AJCC stage
MC: Medullary carcinoma, PDC: Poorly differentiated carcinoma
NS: Not statistically significant (p<0.05)