Summary of primary HNSCC tumor sites evaluated
| Tumor Type | No. of Patients |
|---|---|
| Untreated (n = 22), primary site | |
| Larynx | 7 |
| Hypopharynx | 1 |
| Retromolar trigone, anterior tonsillar pillar | 3 |
| Oral cavity–other | 5 |
| Oropharynx–other | 3 |
| Sinuses, nose | 3 |
| Recurrent or metastatic (n = 8) | |
| Oral cavity | 2 |
| Oropharynx | 1 |
| Other | 5a |
↵a Head and neck squamous cell carcinoma invading the parotid gland, n = 2; parapharyngeal space metastasis, n = 1; cheek, n = 1; and neopharynx, n = 1.