Clinical characteristic | Cases |
---|---|
Age | |
 ≥60 years | 20 |
 <60 years | 10 |
Gender | |
 Male | 19 |
 Female | 11 |
Histological type | Â |
 Squamous cell carcinoma | 20 |
 Adenocarcinoma | 8 |
 Adenosquamous carcinoma | 2 |
Tumor location | |
 Central | 21 |
 Peripheral | 9 |
TNM stage | Â |
 IIIA | 14 |
 IIIB | 16 |