%0 Journal Article %T A prospective cohort study on stereotactic radiotherapy in the management of dural recurrence of olfactory neuroblastoma. %A Goodman CD %A DeMonte F %A Nguyen TP %A Garden AS %A Wang CH %A Wang XA %A Diao K %A Lee A %A Reddy J %A Moreno A %A Spiotto M %A Fuller CD %A Rosenthal D %A Ferrarotto R %A Raza SM %A Su SY %A Warner A %A Hanna E %A Phan J %J Head Neck %V 0 %N 0 %D 2024 Jul 29 %M 39073252 %F 3.821 %R 10.1002/hed.27887 %X 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.
CONCLUSIONS: In this largest study of SBRT reirradiation for ONB dural recurrence to date, high local control rates with minimal toxicity were attainable.