The Minor's test in Frey syndrome treated with botulinum toxin: Methodology and efficacy

In this paper, we aimed at methodologically presenting a video-case of Frey Syndrome occurred after parotidectomy, assessed by means of Minor's Test and treated with intradermic botulinum toxin A (BoNT-A) injection. Although largely described in the literature, a detailed explanation of both the procedures has not been previously elucidated. In a more original approach, we also highlighted the role of the Minor's test in identifying the most affected skin areas and new insight on the patient-tailored approach provided by multiple injections of botulinum toxin. Six months after the procedure, the patient's symptoms were resolved, and no evident signs of Frey syndrome were detectable through the Minor's test.

Frey's Syndrome Consequent to an Unusual Pattern of Temporomandibular Joint Dislocation: Case Report with Review of Its Incidence and Etiology

Frey's syndrome was first described in the 18(th) century. Recognizing it as a nonspecific condition, the symptom of gustatory sweating in patients with parotid gland inflammation was described by Duphenix and Baillarger. However, as a specific diagnostic entity, gustatory sweating, following trauma to parotid glands, was first described by Polish neurologist Lucie Frey, in 1923, and hence he proposed the term auriculotemporal syndrome. The condition is characterized by sweating, flushing, a sense of warmth, and occasional pain in the preauricular and temporal areas, following the production of a strong salivary stimulus. Several etiologies of Frey's syndrome have been mentioned in the literature; however, none attribute dislocation of the "intact" mandibular condyle as a cause of the syndrome. Reviewing its pathophysiology, etiology, and incidence in detail, we describe a case of Frey's syndrome subsequent to superolateral dislocation of the intact mandibular condyle following fracture of the anterior mandible. Its management and prevention are also discussed in brief.