Table 2: Target lesion space
| Head and Neck Space | No. | % |
|---|
| Masticator | 36 | 20% |
| Parotid | 24 | 13% |
| Cervical lymph nodesa | 23 | 13% |
| Retropharyngeal | 23 | 13% |
| Sublingual | 19 | 10% |
| Perivertebral | 14 | 8% |
| Pharyngeal mucosal | 13 | 7% |
| Visceralb | 9 | 5% |
| Parapharyngeal | 6 | 3% |
| Carotid | 6 | 3% |
| Submandibular | 4 | 2% |
| Otherc | 4 | 2% |
| Transpatial | 3 | 2% |
| Total | 184 | 100% |