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Volumetric staging in patients treated with primary radiotherapy (n = 63)
| total gross tumor volume (tGTV) | ||||
|---|---|---|---|---|
| Primary site | mean (range) | 1-15cc | 16-70cc | >70cc |
| Oropharynx | ||||
| base of tongue | 34cc (9-127cc) | 2 | 13 | 3 |
| tonsil/lateral mesopharynx | 51cc (4-171cc) | 1 | 11 | 7 |
| Larynx | ||||
| Glottis | 12cc (1-29cc) | 1 | 1 | 0 |
| Supraglottis | 21cc (6-54cc) | 2 | 5 | 0 |
| Hypopharynx | 46cc (5-173cc) | 3 | 11 | 3 |
| Total | 44cc (1-173cc) | 9 (14%) | 41 (65%) | 13 (21%) |
