Abstract
A fifty-three year-old female presented with an hemangiopericytoma of the maxillary sinus. The tumor occupied the left maxillary sinus, nasal cavity and ethmoid sinus. After pathological diagnosis of arterial obstructions of the maxillary artery feeding the artery of the tumor, a total maxillectomy was performed, in addition to intraoperative and postoperative radiation therapy. There was no recurrence of the tumor 10 months after treatment.