Massive chondroma of skull base.
D000328:Adult; D002812:Chondroma / Q000000981:diagnostic imaging / Q000209:etiology / Q000601:surgery*; D006801:Humans; D008297:Male; D012888:Skull Neoplasms / Q000000981:diagnostic imaging / Q000209:etiology / Q000601:surgery*; D014057:Tomography, X-Ray Computed