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Anais Brasileiros de Dermatologia

versão impressa ISSN 0365-0596versão On-line ISSN 1806-4841

An. Bras. Dermatol. vol.93 no.4 Rio de Janeiro jul./ago. 2018

https://doi.org/10.1590/abd1806-4841.20187549 

Syndrome in question

Do you know this syndrome? Harlequin syndrome*

Nelise Ritter Hans-Bittner1 
http://orcid.org/0000-0002-8551-7513

Guilherme Canho Bittner1 
http://orcid.org/0000-0002-5892-4391

Günter Hans Filho1 
http://orcid.org/0000-0001-9324-3703

1Dermatology Service, Hospital Universitário, Universidade Federal de Mato Grosso do Sul, Campo Grande (MS), Brazil.


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.

Keywords: Flushing; Sympathetic nervous system; Sweating

CASE REPORT

A 34-year-old male patient presented with a 5-month history of unilateral flushing and sweating affecting the right side of his face when submitted to prolonged physical exercise, causing him social embarrassment. These skin changes could be reproduced during examination, a few minutes after exercising, with flushing and sweating (Figure 1). The opposite side of the face remained pale and anhidrotic (Figure 2). No pupil abnormalities were found.

Figure 1 Patient demonstrating flushing and sweating only on the right side of the face following exercise 

Figure 2 (A) Right side. (B) Loss of flushing and sweating on the left side of the face and forehead 

Previous medical history included an anxious personality disorder, which has been treated with medication (escitalopram, sodium valproate, naltrexone and zolpidem). The patient had no other diseases or history of traumatic accidents.

Neurological and ophthalmological evaluations were normal. Magnetic resonance imaging of the head and neck, as well as computed tomography of the chest, were normal. A diagnosis of idiopathic harlequin syndrome was made.

DISCUSSION

Harlequin syndrome, first described by Lance et al. in 1988, is a term reserved for patients with an autonomic disturbance due to an hemifacial cutaneous sympathetic denervation,1,2 leading to unilateral anhidrosis and reduced or absent facial flushing on the affected side of the face.2 Paradoxically, patients present with compensatory flushing and sweating on the unaffected, sympathetic innervated side of the face.3 Arms and trunk may also be affected. Although rare, it is a remarkable disease.2

In patients with hemifacial cutaneous sympathetic denervation, heat stress, exercise, or sudden emotion may elicit a dramatic alteration in facial appearance, in which a distinct line divides the denervated, pale, and dry half from the intact, red, and moist half.1,4

Oculosympathetic paresis may be associated but is not always present.2 The literature lacks consensus regarding what, if any, pupillary abnormalities belong with the diagnosis of harlequin syndrome.4 Although most patients have normal pupils, the abnormality most frequently described by Bremner and Smith is Horner syndrome, characterized by ptosis, miosis and enophthalmus.2

The majority of cases of this rare condition are primary in nature. In about one-sixth of the patients, however, the disorder is caused by an underlying disease or a structural lesion (i.e., secondary harlequin syndrome). The iatrogenic type, occurring after surgical procedures, has been reported with an increasing frequency.5 The neurological damage can occur anywhere along the sympathetic outflow to the face.1,3

The syndrome is most common in women, and social embarrassment is the main complaint of the affected individuals.5 Thorough investigation is required to rule out underlying structural lesions, some of which may require surgical correction.1,3

Most patients do not require medical or surgical treatment unless there is an underlying disease. Where embarrassment is significant and there is a need for psychological support, contralateral sympathectomy should be considered.1,2

Despite the rarity of harlequin syndrome, dermatologists should be aware of this condition in order to diagnose properly and provide multidisciplinary assistance.

Work conducted at the Dermatology Service, Hospital Universitário, Universidade Federal de Mato Grosso do Sul, Campo Grande (MS), Brazil.

Financial support: None.

REFERENCES

1 Vidal Esteban A, Natera-de Benito D, Martínez Sánchez D, Reche Sainz A, Rodríguez Díaz MR, Alfaro Iznaola CM et al. Congenital Harlequin syndrome as an isolated phenomenon: A case report and review of the literature. Eur J Paediatr Neurol. 2016;20:426-30. [ Links ]

2 Breunig J de A, Hartmann M, Freire CF, Almeida Jr HL. Harlequin syndrome in childhood - Case report. An Bras Dermatol. 2012;87:907-9. [ Links ]

3 Reddy H, Fatah S, Gulve A, Carmichael AJ. Novel management of harlequin syndrome with stellate ganglion block. Br J Dermatol. 2013;169:954-6. [ Links ]

4 Cheshire WP Jr, Low PA. Harlequin syndrome: still only half understood. J Neuroophthalmol. 2008;28:169-70. [ Links ]

5 Jung JM, Lee MH, Won CH, Chang SE, Lee MW, Choi JH, et al. Iatrogenic harlequin syndrome: a new case. Ann Dermatol. 2015;27:101-2 [ Links ]

Received: May 23, 2017; Accepted: February 21, 2018

Mailing Address: Nelise Ritter Hans Bittner. E-mail: nelisehans@gmail.com

Conflict of interest: None.

AUTHORS CONTRIBUTION

Nelise Ritter Hans Bittner

ORCID 0000-0002-8551-7513

Elaboration and writing of the manuscript; Critical review of the literature

Guilherme Canho Bittners

ORCID 0000-0002-5892-4391

Elaboration and writing of the manuscript; Intellectual participation in propaedeutic and/ or therapeutic conduct of cases studied

Günter Hans Filho

ORCID 0000-0001-9324-3703

Critical review of the literature; Critical review of the manuscript

Creative Commons License This is an Open Access article distributed under the terms of the Creative Commons Attribution NonCommercial License which permits unrestricted noncommercial use, distribution, and reproduction in any medium provided the original work is properly cited.