Objective: Presentation of a case of perioral Frey syndrome.Design: Case report.Subject: A 72-year-old woman with hyperhidrosis around the mouth and chin.Results: This patient suffered from bilateral perioral gustatory sweating following a mandibular osteotomy; such a case has not previously been described. Possible pathophysiological hypotheses are discussed in relation to the anatomy and innervation of the salivary glands.Conclusion: Perioral gustatory sweating is a rare complication of osteotomy.
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