Mastoid and paranasal sinus infections and their relation to the central nervous system.
D000208:Acute Disease; D001922:Brain Abscess / Q000209:etiology*; D002908:Chronic Disease; D004432:Ear, Middle / Q000473:pathology; D005260:Female; D006801:Humans; D008297:Male; D008417:Mastoiditis / Q000150:complications*; D008581:Meningitis / Q000209:etiology*; D012851:Sinus Thrombosis, Intracranial / Q000209:etiology*; D012852:Sinusitis / Q000150:complications*; D013924:Thrombophlebitis / Q000209:etiology*