Harlequin syndrome is an extremely rare benign condition characterized by unilateral facial flushing and sweating.Patient concern:
An 11-year-old boy presented with complaint of a right neck mass of 1-month duration.Diagnosis:
The preoperative diagnosis was neurogenic tumor of vagus nerve or sympathetic nerve.Interventions:
We performed right neck mass removal under general anesthesia.Outcomes:
We report a case of harlequin syndrome associated with Horner syndrome in an 11-year boy who underwent excision of right neck schwannoma.Lessons:
Clinicians should consider the point that harlequin syndrome could occur as a first sign of more serious conditions.