Frey Syndrome.

Area of Science:

• Pediatric Neurology
• Dermatology
• Otolaryngology

Background:

• Frey syndrome, a rare condition involving auriculotemporal nerve dysfunction and gustatory flushing, can affect children.
• Understanding its features in childhood is crucial for accurate diagnosis and management.

Purpose of the Study:

• To describe the clinical features of Frey syndrome in childhood.
• To identify associated factors and outcomes in pediatric cases.

Main Methods:

• A multicenter, retrospective, descriptive observational national case series.
• Data collected via clinical history, photographs, and provocation tests.
• 48 cases of childhood Frey syndrome were analyzed.

Main Results:

• 35 unilateral and 13 bilateral cases identified; sweating occurred in 10%.
• Diagnosis delayed in 80% of cases; 21% received unnecessary dietary restrictions.
• Instrumented delivery was associated with unilateral forms (OR=29).
• Favorable outcomes observed: 57% regression, 20% recovery.
• Regression more common in unilateral forms (69%); recovery in bilateral forms (58%).

Conclusions:

• Childhood Frey syndrome is rare, benign, and typically has a favorable prognosis.
• Unilateral cases are linked to instrumented delivery; bilateral cases show higher recovery rates.
• Pediatricians must recognize Frey syndrome to prevent misdiagnosis (e.g., food allergy) and unnecessary interventions.