PMC9852493_01
Clinical appearance and imaging findings of the patient. (A) Photograph of the patient showing swelling of the left eyelid and parotid gland area. (B) Enhanced CT image showing significant enlargement of the left submandibular soft tissue and parotid gland (arrow). (C) Enhanced CT image showing the involvement of the left parapharyngeal space and airway stenosis (arrow).
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F1
The facial swelling was further aggravated at 3 h postoperatively; swelling was found on the left eyelid and forehead (Figure 1A), and the overlying skin of the left parotid gland area was mildly hyperemic and tender. The swelling involved the left parapharyngeal space, uvula, oropharynx, epiglottis, and laryngopharyngeal airway (Figures 1B,C).