Primary ethmoidal lymphoma.
D000328:Adult; D000368:Aged; D005005:Ethmoid Sinus / Q000000981:diagnostic imaging*; D006801:Humans; D008223:Lymphoma / Q000000981:diagnostic imaging*; D008297:Male; D008875:Middle Aged; D010255:Paranasal Sinus Neoplasms / Q000000981:diagnostic imaging*; D014057:Tomography, X-Ray Computed