TABLE 1.

Clinical features of subjects.

Variable	Number of subjects	Percentage (%)
Subjects with clinical features	86	100
Age (median 60, range 14–88)
≤60	42	48.8
>60	44	51.2
Gender
Male	58	67.4
Female	28	32.6
Histology
Benign	20	23.3
Adenocarcinoma	15	17.4
Squamous carcinoma	28	32.6
SCLC	6	7.0
Pulmonary metastasis	17	19.7