Nasal hemangiopericytoma.
D000328:Adult; D004844:Epistaxis / Q000209:etiology; D005004:Ethmoid Bone / Q000601:surgery; D006393:Hemangiopericytoma / Q000000981:diagnostic imaging / Q000473:pathology; D006801:Humans; D008297:Male; D009362:Neoplasm Metastasis; D009364:Neoplasm Recurrence, Local; D009669:Nose Neoplasms / Q000000981:diagnostic imaging / Q000473:pathology / Q000601:surgery; D011859:Radiography; D014054:Tomography