TABLE 1.
Patient Demographics and Tumor Characteristics of All Patients
| Characteristic | pN+ (n = 7) | pN− (n = 14) | All patients (n = 21) |
|---|---|---|---|
| Age (y) | 67 (65–82) | 64 (29–78) | 66 (29–82) |
| Female | 6 (85.8) | 8 (57.1) | 14 (67.7) |
| Weight (kg) | 73 (52–105) | 84 (53–140) | 80 (52–140) |
| BSA (m2) | 1.87 (1.52–2.17) | 1.99 (1.58–2.67) | 1.96 (1.52–2.67) |
| LNs | 261 | 358 | 619 |
| Level I | 49 (18.8) | 72 (20.1) | 121 (19.5) |
| Level II | 50 (19.2) | 102 (28.5) | 152 (24.6) |
| Level III | 74 (28.4) | 121 (33.8) | 195 (31.5) |
| Level IV | 58 (22.2) | 47 (13.1) | 105 (17.0) |
| Level V | 30 (11.5) | 16 (4.5) | 46 (7.4) |
| Positive LNs† | 64 | NA | 64 |
| Level I | 5 (7.8) | 5 (7.8) | |
| Level II | 11 (17.2) | 11 (17.2) | |
| Level III | 19 (29.7) | 19 (29.7) | |
| Level IV | 19 (29.7) | 19 (29.7) | |
| Level V | 10 (15.6) | 10 (15.6) | |
| Patients with ENE | 5 (62.5) | NA | 5 (23.8) |
| pN-stage* | |||
| N0 | 0 (0) | 14 (100) | 14 (66.7) |
| N1 | 2 (28.6) | 0 | 2 (9.5) |
| N2 | 4 (81.6) | 0 | 4 (19.0) |
| N3 | 1 (20.4) | 0 | 1 (4.8) |
| pT-stage | |||
| T1 | 1 (14.3) | 5 (35.7) | 6 (28.6) |
| T2 | 2 (28.6) | 3 (21.4) | 5 (23.8) |
| T3 | 1 (4.8) | 0 | 1 (4.8) |
| T4 | 3 (42.9) | 6 (42.9) | 9 (42.9) |
| Neck dissection† | |||
| Elective | 11 (64.7) | 3 (33.3) | 14 (53.8) |
| Therapeutic | 6 (35.3) | 6 (66.7) | 12 (46.2) |
*Initially, 6 patients were diagnosed with pathologically positive neck. Since 3 additional metastases were found on basis of FMI, total of 64 tumor-positive LNs was found, and 1 patient was upstaged from pN0 to pN1.
†Five patients received bilateral neck dissection, and total number of neck dissections therefore equals 26.
BSA = body surface area; ENE = extranodal extension.
Qualitative data are number and percentage; continuous data are median and range.