Syndromes dysautonomiques du visage avec signe et syndrome d'Harlequin : étude de trois cas et revue de la littérature

Harlequin phenomenon with flushing and unilateral hyperhydrosis is rare, occurring alone or in combination with other autonomic syndromes of the face. Idiopathic in two-thirds of cases, Harlequin phenomenon does not require specific treatment; sympathectomy may be discussed in the severe cases with a significant social impact.