Table 1.
Patient demographic and tumor characteristics.
| Characteristics | n (%) | Median (Range) |
|---|---|---|
| Patient | ||
| Gender | ||
| Male | 10 (71) | |
| Female | 4 (29) | |
| Age (y) | 57 (40, 78) | |
| Surgery before BNCT | ||
| Yes | 8 (57) | |
| No | 6 (43) | |
| Prior cumulative RT dose (Gy) | 68 (60, 102) | |
| Time from prior RT to BNCT (mo) | 23 (8, 108) | |
| Tumor | ||
| Primary site | ||
| Oral cavity | 7 (50) | |
| Nasopharynx | 2 (14) | |
| Oropharynx | 2 (14) | |
| Hypopharynx | 1 (7) | |
| Parotid gland | 1 (7) | |
| Mandible | 1 (7) | |
| Pathology | ||
| SCC | 10 (71) | |
| Other carcinoma * | 3 (21) | |
| Sarcoma | 1 (7) | |
| Volume (cc) | 13.5 (3.1, 368) | |
| Recurrent T stage | ||
| rT0 | 1 (7) | |
| rT1 | 0 (0) | |
| rT2 | 1 (7) | |
| rT3 | 6 (43) | |
| rT4 | 6 (43) | |
| Recurrent N stage | ||
| rN0 | 9 (64) | |
| rN1 | 2 (14) | |
| rN2 | 3 (21) | |
| rN3 | 0 (0) |
RT, radiotherapy; BNCT, boron neutron capture therapy; mo, months; SCC, squamous cell carcinoma. * Other carcinoma includes mucoepidermoid carcinoma and non-keratinizing carcinoma.