Table 1.

Clinicopathological characteristics of the study cohort (n = 53)

Characteristics	Number (%)
Gender
Male	32 (60.3)
Female	21 (39.7)
Age range, median (years)	41‒84, 67
Smoking history
Current or former	51 (96.2)
Never smoker	2 (3.8)
Angiolymphatic invasion
Present	43 (81.1)
Absent	10 (18.9)
Visceral pleural invasion
Present	24 (45.2)
Absent	29 (54.8)
Histology
Adenocarcinoma	35 (66.1)
Squamous cell carcinoma	11 (20.7%)
Adenosquamous carcinoma	5 (9.4%)
Large cell neuroendocrine carcinoma	2 (3.7%)
Stage
I	29 (54.7%)
II	9 (17.0%)
III	7 (13.2%)
IV	8(15.1%)