Harlequin syndrome: a case report / Síndrome de arlequín: reporte de un caso

El síndrome de Arlequín es una condición neurológica poco común, la mayoría de las veces benigna. Por lo general la mayor parte de los casos son de causa idiopática (aunque existen causas secundarias). Esta afección consiste en la aparición de eritema e hiperhidrosis facial unilateral desencadenado por el ejercicio, calor, emociones o estrés, la que se produce debido a una disfunción contralateral de la vía simpática vasodilatadora y sudomotora. Se presenta el caso de un paciente de sexo masculino de 49 años, que relata presentar un cuadro de 15 años de evolución caracterizado por la aparición de eritema y sudoración excesiva de la hemicara derecha, la cual termina abruptamente en la línea media de la cara, gatillado por el ejercicio y el calor en verano, mientras que la hemicara izquierda presenta anhidrosis sin eritema.

The Harlequin syndrome is a rare neurological condition, most of the time benign. In general, most cases are idiopathic (although there are secondary causes). This condition consists in the appearance of unilateral facial erythema and hyperhidrosis triggered by exercise, heat, emotions or stress, which occurs due to a contralateral dysfunction of the sympathetic vasodilator and sudomotor pathway. We present the case of a 49-year-old male patient, with no relevant morbid history, who reports a medical history of 15 years of evolution, characterized by the appearance of erythema and excessive sweating of the right side of his face, which ends abruptly in the middle line of the face, triggered by exercise and heat during the summer. While the left side presents anhidrosis without erythema.

Enfoque diagnóstico del paciente con rubor facial transitorio en atención primaria / A Diagnostic Approach of Patient with Flushing in Primary Care

El rubor facial transitorio se define como una sensación de calor, acompañada de enrojecimiento de la piel, causada por una respuesta vasomotora con el resultante incremento en el flujo sanguíneo regional, debido a la acción directa de diferentes mediadores liberados por los nervios. Los cuadros pueden ser episódicos o constantes y se relacionan con respuestas fisiológicas y con patologías de origen benigno y maligno. El objetivo de la revisión es realizar un abordaje racional de esta condición en el escenario de atención primaria, con el fin de llegar a un diagnóstico precoz y completo, abordando los principales diagnósticos diferenciales asociados con esta condición.

The definición of flushing involves a sensation of heat along with redness of the skin, caused by vasomotor influx resulting in an increased of the regional vascular blood flow due to the direct action of different mediators through the vasomotor nerves. These symptoms can be episodio or repetitive and they' can be related to benign or malignant conditions. The objective of this review is to develope a racional approach of the condition at primary care, with the purpose of an early and complete diagnosis, covering the main differential diagnosis related to this condition.

Do you know this syndrome? Harlequin syndrome

Abstract: Harlequin syndrome is a rare condition in which one half of the face fails to flush and sweat due to damage of the sympathetic fibers on the ipsilateral side. The majority of cases are idiopathic, but may be iatrogenic or caused by space-occupying lesions or brainstem infarction. We report a case of idiopathic harlequin syndrome in a 34-year-old man with a 5-month history of unilateral facial flushing and sweating after exercise. Despite the rarity of this syndrome, dermatologists should be aware of this condition in order to diagnose properly and provide multidisciplinary assistance.

Harlequin syndrome in childhood: case report / Síndrome de Arlequim na infância: relato de caso

Harlequin syndrome happens in only one side of the face. In the affected half, the face does not sweat or flush even with simulation. Arms and trunk could also be affected. This condition is induced by heat, exercise and emotional factors. The article reports a case of a nine-year-old female with a 3-year history of unilateral flushing and sweating after exercise; a brief literature review is included. Despite the rarity of this syndrome, dermatologists should recognize this condition and refer these patients to ophthalmological and neurological examination.

A Síndrome de Arlequim ocorre em apenas um lado da face. No metade afetada, a face não produz suor ou flushing, mesmo estimulada. Braços e tórax raramente podem ser afetados. Esta condição é geralmente induzida por calor, exercícios e fatores emocionais. O artigo relata um caso de uma menina de 9 anos de idade com uma história de 3 anos de flushing e sudorese unilaterais no rosto após exercícios e inclui uma revisão da literatura. Apesar da raridade desta síndrome, dermatologistas devem reconhecer esta condição e encaminhar estes pacientes a um exame oftalmológico e neurológico.