Table 4.
Disease characteristics of patients
| Site | Upper 1/3 | Middle 1/3 | Lower 1/3 | |
| 1 (1.4%) | 57 (77%) | 16 (21.6%) | ||
| Lesion length | Range: 2-15 cm (median = 6) | |||
| TNM staging | ||||
| T | T1 | T2 | T3 | T4 |
| – | 1 (1.4%) | 59 (79.7%) | 14 (18.9%) | |
| N | N0 | N1 | N2 | N3 |
| 7 (9.5%) | 41 (55.4%) | 17 (23%) | 9 (12.2%) | |
| M | M0 | M1 | ||
| 34 (45.9%) | 40 (54.1%) | |||
| Metastatic sites | ||||
| Lung | 14 | |||
| Liver | 7 | |||
| Bone | 4 | |||
| Lymph nodes | 14 | |||
| Adrenal | 2 | |||
| Peritoneum | 1 | |||
| Muscle | 1 | |||
| Stage | III A | III B | III C | IV |
| 18 (24.32%) | 6 (8.1%) | 10 (13.5%) | 40 (54.1%) | |
| Morphology | Ulcero-proliferative | Ulcero-infiltrative | ||
| 58 (78.4%) | 16 (21.6%) | |||
| Histology | NOS SCC | MD SCC | PD SCC | Adenocarcinoma |
| 27 (36.5%) | 14 (18.9%) | 31 (41.9%) | 2 (2.7%) | |
NOS – not otherwise specified, MD – median, PD SCC – poorly differentiated squamous cell carcinoma