A 16-year-old male competitive swimmer presented with dyspnea, chest pain, and right neck crepitus after a race. He had undergone an uncomplicated lower right third molar tooth extraction 2 days earlier. He had no known allergies. On examination, he was alert, well-perfused, and afebrile. The peritoneal signs were negative. A chest radiograph showed subcutaneous emphysema with pneumomediastinum. Computed tomography showed submandibular, neck, and medias-tinal emphysema (Figure 1). Conservative therapy based on observation and prophylactic parenteral administration of antibiotics (clindamycin 450 mg every 6h and ceftriaxone 2g daily for 10 days) was successfully adopted, and he was discharged after 3 days. This research received no specific grant from any funding agency in the public, commerical, or not-for-profit sectors.
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