Curative high-dose reirradiation for patients with recurrent head and neck adenoid cystic carcinomas: Outcomes and analysis of patterns of failure.

Curative reRT for HNACC is possible for selected cases, but the LR rate in the irradiated field and the risk of severe toxicity remain high. Improved selection criteria and more carefully defined target volumes may improve outcome in these patients. A further study including larger cohort of patients would be useful to confirm these results.