Cytological diagnoses by fine needle aspiration
| Fine needle aspirates | No. patients |
| Primary lung cancers | 82 (75.9%) |
| Small cell carcinoma | 5 (6.1%) |
| Adenocarcinoma | 61 (74.4%) |
| Squamous cell carcinoma | 15 (18.3%) |
| Large cell carcinoma | 1 (1.2%) |
| Metastases | 8 (7.4%) |
| Non-malignant | 18 (1.7%) |
| Total | 108 |