Table 2.
Characteristics of patients enrolled in this study
| Patients (n = 38) | |
| Age, years, median (range) | 67 (50–81) |
| Gender | |
| Male | 27 |
| Female | 11 |
| Lesions (n = 38) | |
| Location | |
| Cervical esophagus | 2 |
| Upper thoracic esophagus | 4 |
| Middle thoracic esophagus | 25 |
| Lower thoracic esophagus | 6 |
| Abdominal esophagus | 1 |
| Histology | |
| Squamous cell carcinoma | 37 |
| Adenocarcinoma | 1 |
| Stage | |
| I | 9 |
| II | 8 |
| III | 21 |
| T factor | |
| 1 | 9 |
| 2 | 7 |
| 3 | 14 |
| 4 | 8 |
| Type, n (%) | |
| 0 (I/IIa/IIb/IIc/III) | 9 (0/5/2/2/0; 23.7) |
| 1 | 6 (15.8) |
| 2 | 18 (47.4) |
| 3 | 4 (10.5) |
| 4 | 0 (0.0) |
| 5 | 1 (2.6) |
| Length, cm, median (range) | 5.5 (2–15) |
| Circumference, n (%) | |
| ≤1/4 | 5 (13.2) |
| >1/4 or ≤1/2 | 13 (34.2) |
| >1/2 or ≤3/4 | 7 (18.4) |
| >3/4 | 13 (34.2) |
| Stenosis, n (%) | |
| Passage of the conventional endoscope | |
| Yes | 25 (65.8) |
| No | 13 (34.2) |