Table 1.
Demographics of Nodal Subgroups
| Histologic Data | N = 0 (n = 289) | N = 1 (n = 84) | N = 2–3 (n = 84) | N > 3 (n = 147) |
|---|---|---|---|---|
| Tumor site (%) | ||||
| Lower esophagus | 138 (47) | 39 (46) | 37 (44) | 57 (39) |
| EG junction | 80 (28) | 35 (42) | 33 (39) | 75 (51) |
| Middle esophagus | 55 (19) | 10 (12) | 12 (14) | 11 (7) |
| Upper esophagus | 16 (6) | 0 | 2 (3) | 4 (3) |
| Morphology (%) | ||||
| Adenocarcinoma | 140 (48) | 51 (61) | 57 (68) | 113 (77) |
| Squamous cell carcinoma | 140 (48) | 29 (35) | 25 (30) | 32 (22) |
| Others | 9 (4) | 4 (5) | 2 (1) | 2 (1) |
| Treatment (%) | ||||
| Multimodal therapy | 129 (44) | 28 (33) | 24 (29) | 21 (14) |
| Surgery alone | 161 (56) | 56 (76) | 60 (71) | 125 (86) |
| Residual tumor (%) | ||||
| R0: no residual tumor | 250 (86) | 71 (85) | 64 (76) | 108 (73) |
| R1: residual tumor found | 39 (13) | 13 (15) | 19 (23) | 39 (27) |
| Rx: unknown | 1 (1) | – | 1 (1) | – |
| Pathological stage (%) | ||||
| Stage 0 | 53 (18) | – | – | – |
| Stage I | 59 (20) | 1 (1) | – | – |
| Stage II | 170 (59) | 21 (25) | 25 (30) | 16 (11) |
| Stage III | 5 (2) | 58 (29) | 53 (63) | 110 (76) |
| Stage IV | 1 (1) | 4 (5) | 6 (7) | 20 (13) |
| pT stage (%) | ||||
| Tx | 3 (1) | 0 | 2 (3) | 1 (0.5) |
| Tis | 12 (4) | 0 | 0 | 0 |
| T0 | 40 (14) | 1 (1) | 2 (3) | 2 (1) |
| T1 | 56 (19) | 5 (6) | 4 (5) | 3 (2) |
| T2 | 35 (12) | 16 (19) | 18 (21) | 12 (8) |
| T3 | 138 (48) | 60 (71) | 54 (64) | 120 (82) |
| T4 | 6 (2) | 2 (3) | 4 (5) | 8 (5) |
EG = esophagogastric