Malignant and benign sinonasal paragangliomas.

Objectives/hypothesis: To report on the clinical course and management of sinonasal paragangliomas (PGLs).

Study Design And Methods: Retrospective chart review of six patients with PGLs of the nasal cavity and paranasal sinuses.

Results: Three patients had tumors with malignant clinical behavior with cerebral metastases or infiltration of brain and local recurrence, despite surgery and/or radiotherapy, while three patients demonstrated a benign course.