Types of preoperative specimen submitted
| All patients(n = 237) | Patients with squamous carcinoma* (n = 81) | Patients with adenocarcinoma*(n = 94) | |
|---|---|---|---|
| *Final diagnosis on resected specimens. | |||
| Cytology specimens only | 49% | 25% | 76% |
| Cytology + biopsy specimens | 46% | 68% | 21% |
| Biopsy specimens only | 4% | 7% | 3% |