Characteristics and management of sinonasal paragangliomas: a systematic review.

Sinonasal paragangliomas are vascular neoplasms manifesting clinically with recurrent epistaxis and nasal obstruction. Management goals are total resection with clear margins and long-term follow-up due to tendency for local recurrence. Radiotherapy has been utilized as adjuvant therapy with variable results. Further randomized controlled studies may be invaluable in elucidating these findings.