Do you know this syndrome? Harlequin syndrome

Area of Science:

• Neurology
• Dermatology
• Autonomic Nervous System Disorders

Background:

• Harlequin syndrome is a rare condition characterized by unilateral facial flushing and sweating impairment.
• It results from damage to sympathetic nerve fibers on one side of the face.
• Causes can be idiopathic, iatrogenic, or secondary to lesions or infarction.

Observation:

• A case of idiopathic harlequin syndrome is presented in a 34-year-old male.
• The patient experienced a 5-month history of unilateral facial flushing and sweating.
• Symptoms were particularly noted after physical exertion.

Findings:

• The case supports the idiopathic nature of harlequin syndrome in some instances.
• Demonstrates the clinical presentation of impaired sympathetic function on one side of the face.
• Highlights the link between physical activity and symptom manifestation.

Implications:

• Dermatologists and neurologists should consider harlequin syndrome in the differential diagnosis of unilateral facial autonomic dysfunction.
• Early diagnosis is crucial for appropriate patient management and multidisciplinary care.
• Increased awareness of this rare condition can improve patient outcomes and understanding of facial autonomic pathways.