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Relationship between tumor histology according to the WHO classification and viral status
| WHO type | No. of patients (%) | |||
|---|---|---|---|---|
| All | EBV‐positive | HPV‐positive | EBV/HPV‐negative | |
| Keratinizing SCC | 33 | 2 (6) | 12 (36) | 19 (58) |
| Non‐keratinizing differentiated | 25 | 13 (52) | 3 (12) | 9 (36) |
| Non‐keratinizing undifferentiated | 92 | 78 (85) | 6 (6) | 8 (9) |
| Total | 150 | 93 (62) | 21 (14) | 36 (24) |
Abbreviations: EBV, Epstein–Barr virus; HPV, human papillomavirus; SCC, squamous cell carcinoma.
