Clinicopathologic characteristics of 95 IHC-verified resected SQCCs
| Characteristic | N (%) or median (range) |
|---|---|
| Age, y | 68 (37–88) |
| Gender | |
| Male | 62 (65) |
| Female | 33 (35) |
| Smoking | |
| Never | 2 (2) |
| Current or former | 93 (98) |
| Smoking pack-years | 58 (0–132) |
| Tumor size | 2.5 (0.7–11.5) |
| Tumor differentiation grade | |
| Well or moderate | 44 (46) |
| Poor | 51 (54) |
| Stage (pathologic)a | |
| IA | 48 (51) |
| IB | 9 (10) |
| IIA | 16 (17) |
| IIB | 10 (11) |
| IIIA | 10 (11) |
| IIIB/IV | 2 (2) |
| Surgical procedure | |
| Wedge | 31 (33) |
| Segmentectomy | 2 (2) |
| Lobectomy | 49 (52) |
| Pneumonectomy | 9 (10) |
| En block resection of lung and chest wall | 1 (1) |
| Bronchial tumor resection | 3 (3) |
| Immunohistochemistryb | |
| ΔNp63+/TTF-1− | 95 (100) |