Table III.
Stage distribution.
| AJCC Stagea | MC (%) (n=50) | PD-MC (%) (n=36) | UD-MC (%) (n=11) | PDA (%) (n=10,878) | UDA (%) (n=694) |
|---|---|---|---|---|---|
| I | 12.0 | 13.89 | 0 | 8.81 | 9.80 |
| II | 44.0 | 47.22 | 45.45 | 28.06 | 27.38 |
| III | 34.0 | 25.0 | 54.55 | 40.10 | 38.90 |
| IV | 10.0 | 13.89 | 0 | 22.98 | 23.92 |
MC, medullary carcinoma; PD-MC, poorly differentiated medullary carcinoma; UD-MC, undifferentiated medullary carcinoma; PDA, poorly differentiated adenocarcinoma; UDA, undifferentiated adenocarcinoma.
a
American Joint Committee on Cancer Staging System, 7th edition. All patients with in situ cancer and unknown staging were excluded from the analysis.