Solitary Fibrous Tumor / Naso-sinus Hemangiopericytoma: Diagnostic and Therapeutic Management

The Hemangiopericytoma is a perivascular tumorwith uncertain malignant potential.The nasosinusal location is rare and differs from other locations by its low grade and its highest rate of recurrence.We report the case of a hemangiopericytoma of the nasal cavity in a 46-year-old patient, diagnosed with locally advanced stage with bone destruction and right blindness.Surgical excision was impossible.The patient received exclusive radiotherapy using intensity modulated radiation therapyand a dose of 70 Gywas delivered.After one year, the patient presented a local progression of the tumor, which required reirradiation by stereotaxic radiotherapy and received systemic chemotherapy.