Table 1 Patient characteristics (n = 34)
Characteristic | Patients |
|---|---|
Age (Median) | 56.5 |
Sex | |
 Male | 25 (74 %) |
 Female | 9 (27 %) |
Location | |
 Tonsil | 17 (50 %) |
 Base of Tongue | 16 (47 %) |
 Soft Palate | 1 (3 %) |
Smoking | |
 Smoker | 21 (62 %) |
 Non-Smoker | 13 (38 %) |
p16 | |
 Positive | 28 (82 %) |
 Negative | 3 (9 %) |
 Undetermined | 3 (9 %) |
Preoperative Tumor Size (median, n = 25) | 2.20 cm |
Postoperative Tumor Size (median, n = 31) | 2.20 cm |
Preoperative Node Size (median, n = 23) | 3.00 cm |
Postoperative Node Size (median, n = 19) | 3.50 cm |
Preoperative T Stage | |
 T0 | 3 (9 %) |
 T1 | 7 (21 %) |
 T2 | 21 (62 %) |
 T3 | 2 (6 %) |
 T4 | 0 (0 %) |
 Unknown | 1 (3 %) |
Postoperative T Stage | |
 T1 | 12 (35 %) |
 T2 | 17 (50 %) |
 T3 | 4 (12 %) |
 T4 | 0 (0 %) |
 Unknown | 1 (3 %) |
Preoperative N Stage | |
 N0 | 10 (29 %) |
 N1 | 9 (27 %) |
 N2 | 14 (41 %) |
 N3 | 0 (0 %) |
 Unknown | 1 (3 %) |
Postoperative N Stage | |
 N0 | 13 (38 %) |
 N1 | 3 (9 %) |
 N2 | 17 (50 %) |
 N3 | 1 (3 %) |
Preoperative Overall Stage | |
 Stage I | 2 (6 %) |
 Stage II | 6 (18 %) |
 Stage III | 11 (33 %) |
 Stage IVA | 14 (42 %) |
 Unknown | 1 (3 %) |
Postoperative Overall Stage | |
 Stage I | 4 (12 %) |
 Stage II | 5 (15 %) |
 Stage III | 6 (18 %) |
 Stage IVA | 18 (53 %) |
 Unknown | 1 (3 %) |
Lymph Nodes | |
 Positive node on imaging | 23 (68 %) |
 Neck dissection performed | 29 (85 %) |
  Positive node on dissection | 19 (56 %) |
  ECE present | 15 (44 %) |
  No ECE present | 14 (41 %) |
Extent of ECE (median, n = 13) | 2.00 mm |
ECE Lewis Grade | |
 0 | 1 (3 %) |
 1 | 4 (12 %) |
 2 | 7 (21 %) |
 3 | 7 (21 %) |
 4 | 1 (3 %) |
Surgical Margins | |
 Positive | 4 (12 %) |
 Negative | 30 (88 %) |
  Distance to negative margins (median) | 3.00 mm |
Adjuvant Therapy | |
 None | 10 (29 %) |
 Radiation therapy alone | 7 (21 %) |
 Chemoradiation therapy | 17 (50 %) |