Abstract
Background: Treatment for dural recurrence of olfactory neuroblastoma (ONB) is not standardized. We assess the outcomes of stereotactic body radiotherapy (SBRT) in this population. Methods: ONB patients with dural recurrences treated between 2013 and 2022 on a prospective registry were included. Tumor control, survival, and patient-reported quality of life were analyzed. Results: Fourteen patients with 32 dural lesions were evaluated. Time to dural recurrence was 58.3 months. Thirty lesions (94%) were treated with SBRT to a median dose of 27 Gy in three fractions. Two patients (3 of 32 lesions; 9%) developed in-field radiographic progression, five patients (38%) experienced progression in non-contiguous dura. Two-year local control was 85% (95% CI: 51–96%). There were no >grade 3 acute toxicities and 1 case of late grade 3 brain radionecrosis. Conclusion: In this largest study of SBRT reirradiation for ONB dural recurrence to date, high local control rates with minimal toxicity were attainable.
Original language | English (US) |
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Journal | Head and Neck |
DOIs | |
State | Accepted/In press - 2024 |
Keywords
- dural recurrence
- esthesioneuroblastoma
- olfactory neuroblastoma
- SBRT
- stereotactic radiation
ASJC Scopus subject areas
- Otorhinolaryngology