Table 2. Histopathological findings of 156 biopsied lesions.

Biopsy diagnosis	Patients, n (%)
Malignant/premalignant	100 (64.1)
Primary adenocarcinoma	48
Metastatic adenocarcinoma	21
Other metastasis	13
Carcinoid tumor	7
Primary squamous cell carcinoma	6
Atypical adenomatous hyperplasia	5
Benign	44 (28.2)
Fungal infection	12
Organizing pneumonia	10
Caseating granuloma	5
Noncaseating granuloma	5
Other non-specific chronic inflammation	5
Hamartoma	4
Abscess	1
Fibrosis	1
Pulmonary infarction	1
Inconclusive/insufficient material	12 (7.7)
Total	156 (100)