Table I.
Patient and disease characteristics.
| Number of patients (%) | |
|---|---|
| Total number of patients | 540 |
| Gender | |
| M | 358(66) |
| F | 182(34) |
| Age (at the time of multidisciplinary discussion) | |
| Mean (range) year | 61.8 (20-90) |
| Median (IQR) year | 63.0 (52.9-71.6) |
| Head and Neck sites | |
| Oral cavity | 98(18) |
| Oropharynx | 152(28) |
| Hypopharynx | 24(4) |
| Larynx | 100(19) |
| Salivary glands | 60(11) |
| Skin | 17(3) |
| Nasal cavity and paranasal sinuses | 16(3) |
| Lymph node metastasis from unknown primary | 12(2) |
| Recurrences of nasopharyngeal tumours | 5(1) |
| Other head and neck sites | 56(11) |
| Histology | |
| Squamous cell carcinoma | 391(72) |
| Adenocarcinoma | 15(3) |
| Adenoid cystic carcinoma | 23(4) |
| Pleomorphic adenoma | 17(3) |
| Mucoepidermoid tumours | 6(1) |
| Sarcoma | 9(2) |
| Schwannoma | 2 (0.5) |
| Paraganglioma | 2 (0.5) |
| Neuroendocrine tumours | 3 (0.6) |
| Benign histology | 9(2) |
| Other histology | 17(3) |
| N.A. at the time of discussion | 46(9) |
CUP: cancer of the unknown primary; HNC: head and neck cancer; IQR: interquartile range; N.A.: not available; SCC: squamous cell carcinoma.