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Clinical Reviews

Infant scabies: dermoscopic diagnosis and Müller test

Authors:

Sánchez Bernal Ja, Monte Serrano Jb, Aldea Manrique Bc, Zárate Tejero Id

aServicio de Dermatología. Hospital General San Jorge. Huesca, España.
bServicio de Dermatología. Hospital General San Jorge. Huesca, España.
cServicio de Dermatología. Hospital Clínico Universitario Lozano Blesa. Zaragoza, España.
dPediatra. CS. Fuentes de Ebro. Zaragoza, España.

Reference of this article.:

Sánchez Bernal J, Monte Serrano J, Aldea Manrique B, Zárate Tejero I. Escabiosis en lactante: diagnóstico dermatoscópico y test de Müller. Rev Pediatr Aten Primaria. 2021;23:83-6.

Published in Internet: 30/03/2021

Abstract:

Scabies, a skin infestation caused by Sarcoptes scabiei var. hominis, is generally easy to diagnose because of its characteristic clinical features. The diagnosis can be confirmed by the Müller test or by dermoscopy, a non-invasive, painless, and highly accurate technique. We present a representative case of infantile scabies with pathognomonic dermoscopic findings, in a 6-month-old girl referred for evaluation of a 2-week dermatitis. Under suspicion of scabies, a dermoscopy examination was performed, confirming the diagnosis by showing a distinctive dermoscopic feature composed of a S-shaped furrow with a triangle on one of its endings, known as delta wing jet sign. In addition, Müller test was performed, observing the mite on direct microscope examination after scraping one of the skin injuries. This case is a reminder of the typical clinical presentation of scabies in infants and the main methods that allow us to confirm the diagnosis. We want to highlight the usefulness of dermoscopy, as it is a simple and innocuous technique.

Keywords: Scabies. Dermoscopy.


 


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ISSN 2174-4106  Publicación Open Acess, incluida en DOAJ, sin cargo por publicación.

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