title: Positive 'fistula sign' with intact ear-drum in a patient with eosinophil granuloma of the mastoid.
abstract: A case is presented of a positive 'fistula sign' in a patient with an intact ear-drum and no history of previous ear-disease. The cause proved to be an eosinophil granuloma of the temporal bone which responded well to radiotherapy.
mesh_terms: D000328:Adult; D001847:Bone Diseases / Q000175:diagnosis* / Q000532:radiotherapy; D003037:Cobalt Radioisotopes / Q000627:therapeutic use; D004803:Eosinophilic Granuloma / Q000175:diagnosis* / Q000532:radiotherapy; D006801:Humans; D007759:Labyrinth Diseases / Q000175:diagnosis* / Q000532:radiotherapy; D008297:Male; D008336:Mandibular Diseases / Q000175:diagnosis / Q000532:radiotherapy; D008416:Mastoid; D011867:Radioisotope Teletherapy
chemical_list: D003037:Cobalt Radioisotopes