title: Fibrosarcoma of the nose and paranasal sinuses.
mesh_terms: D005005:Ethmoid Sinus / Q000601:surgery; D005354:Fibrosarcoma / Q000000981:diagnostic imaging / Q000209:etiology / Q000473:pathology / Q000601:surgery; D006801:Humans; D008297:Male; D008875:Middle Aged; D009669:Nose Neoplasms / Q000000981:diagnostic imaging / Q000209:etiology / Q000473:pathology / Q000601:surgery; D010255:Paranasal Sinus Neoplasms / Q000000981:diagnostic imaging / Q000209:etiology / Q000473:pathology / Q000601:surgery; D011859:Radiography; D012852:Sinusitis / Q000209:etiology