- Using intraoral ultrasound can increase your success rate for identifying peritonsillar abscess
- Ultrasound can increase your success rate for drainage over landmark method by 50%
- An alternative transcutaneous approach for identifying peritonsillar abscess is to apply a linear probe at the angle of the mandible 
Pearls and Pitfalls
- Constantino TG, Satz WA, Dehnkamp W, Goett H. Randomized Trial Comparing Intraoral Ultrasound to Landmark-based Needle Aspiration in Patients with Suspected Peritonsillar Abscess. Academic Emergency Medicine. 2012; 19(6):626-631.
- Rehrer M, Mantuani D, Nagdev A. Identification of peritonsillar abscess by transcutaneous cervical ultrasound. American Journal of Emergency Medicine. 2013; 31: 267.e1–267.e3