Osteogenic sarcoma of the ethmoid sinus.
D005005:Ethmoid Sinus; D006801:Humans; D008297:Male; D008875:Middle Aged; D012516:Osteosarcoma / Q000175:diagnosis* / Q000628:therapy; D010255:Paranasal Sinus Neoplasms / Q000175:diagnosis* / Q000628:therapy