Cancer and chemodectoma in the middle ear and mastoid.
D002345:Carotid Body Tumor; D004432:Ear, Middle; D006801:Humans; D008416:Mastoid; D009369:Neoplasms; D010236:Paraganglioma, Extra-Adrenal; D011878:Radiotherapy
EAR, MIDDLE/neoplasms; MASTOID/neoplasms; NEOPLASMS; RADIOTHERAPY