Ultrasound
Differentiates cellulitis from<unk> 
Can use an intraoral approach using a endocavitary probe or transcutaneous approach using a linear probe
Can identify depth of neck vasculature prior to aspiration
CT with IV contrast
Differentiates<unk>  from parapharyngeal or retropharyngeal space infection
Differentiates cellulitis from<unk> 
Can use an intraoral approach using a endocavitary probe or transcutaneous approach using a linear probe
Can identify depth of neck vasculature prior to aspiration
Differentiates<unk>  from parapharyngeal or retropharyngeal space infection
Peritonsillar abscess
Streptococcal pharyngitis 
Peritonsillar cellulitis
Neisseria gonorrhoeae
Retropharyngeal abscess
Diphtheria 
Epiglottitis
Bacterial Tracheitis