Table 2.
Tumor Characteristics
| Characteristic | N (%) |
|---|---|
| Tumor margins | |
| Close Margin | 8 (3.4%) |
| Negative Margin | 129 (55.6%) |
| Positive Margin | 41 (17.7%) |
| Margins Unknown | 54 (23%) |
| Histology | |
| Squamous Cell Carcinoma | 210 (90.9%) |
| Other | 21 (9.1%) |
| Side of Neck for IORT | |
| Anterior | 5 (2.2%) |
| Right | 114 (49.4%) |
| Left | 91 (39.4%) |
| Bilateral | 21 (9.1%) |
| Perineural spread | 30 (16.9%) |
| Lymphovascular involvement | 29 (16.3%) |
| Extracapsular extension | 22 (12.3%) |
| Vascular Invasion | 27 (15.1%) |
| Dermal Invasion | 37 (20.7%) |
| Carotid Involvement | 60 (32.6%) |