Article C reactive protein Glasgow coma scale Parapharyngeal abscess adult antibiotic therapy artery compression brain circulus arteriosus case report cerebral artery disease cerebrovascular accident clarithromycin clinical article computed tomographic angiography computer assisted tomography consciousness disorder deep neck space infection dexamethasone diabetes mellitus dysarthria dysphasia external jugular vein external otitis female general practitioner hemiparesis homonymous hemianopia hospital admission human laryngoscopy