Myelomatosis presenting as an isolated lesion in the mastoid.
D000368:Aged; D006801:Humans; D008297:Male; D008416:Mastoid / Q000000981:diagnostic imaging*; D009101:Multiple Myeloma / Q000000981:diagnostic imaging*; D012888:Skull Neoplasms / Q000000981:diagnostic imaging*; D014054:Tomography; D014057:Tomography, X-Ray Computed