mastoiditis. inflammatory disease of the ear. bacterial mastoid

bacteria otolaryngologist mastoiditis infection otoscopy myringotomy rupture transcanal eustachian perforations purulent tinnitus membrane otoscope abscess bleeding tympanostomy effusion suppurative acoustic tympanogram audiogram mastoidectomy externa lump tympanic blocked dysfunction deaf behind pathology tympanotomy ringing auricle tympanocentesis drainage trauma insertion tympanoplasty otitis acute human myringoplasty anatomy inflammatory disease ear bacterial mastoid bone