We present an unusual case of Ludwig's angina secondary to a left tonsillar phlegmon in a previously fit and well 50-year-old woman. This tonsillar phlegmon spread along the peritonsillar/parapharyngeal plane to cause a diffuse cellulitis and collection in the submental, sublingual, and submandibular spaces despite empirical intravenous antibiotic therapy.
Keywords: Ludwig's angina; abscess; parapharyngeal space; peritonsillar abscess; tonsillitis.
© 2022 The Authors. Clinical Case Reports published by John Wiley & Sons Ltd.