Histological diagnosis and outcome
| *In the non-specific group no precise diagnosis was obtained by biopsy, but the benign nature of the lesion was confirmed during the follow up period. | |
| Histology | |
| Benign | 33 (29%) |
| TB | 4 |
| Hamartoma | 5 |
| Granuloma | 4 |
| Non-specific* | 20 |
| Malignant | 81 (71%) |
| Adenocarcinoma | 30 |
| Non-small cell | 23 |
| Squamous | 5 |
| Large cell/undifferentiated | 6 |
| Small cell | 9 |
| Carcinoid | 4 |
| Melanoma | 2 |
| Lymphoma | 2 |
| Outcome | |
| Surgery; full resection/nodes negative | 35 (31%) |
| Surgery; residual tumour/nodes positive | 11 (9.5%) |
| Malignant, palliative approach | 35 (31%) |
| Benign | 33 (29%) |
| Surgery for benign lesion (included in benign) | 3 (2.5%) |