Psammomatoid ossifying fibroma.
D002648:Child; D005350:Fibroma / Q000000981:diagnostic imaging*; D006801:Humans; D008297:Male; D009669:Nose Neoplasms / Q000000981:diagnostic imaging*; D010016:Osteoma / Q000000981:diagnostic imaging*; D014057:Tomography, X-Ray Computed