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Pliegue simiesco - Overview

Nombres alternativos

Pliegue palmar único; Pliegue palmar transversal; Pliegue palmar

Definición:

Es la presencia de una sola línea que se extiende a través de la palma de la mano. Las personas por lo general tienen tres pliegues en las manos.

El término "pliegue simiesco" ya no se utiliza mucho, dado que tiende a tener una connotación negativa (se refiere al mono o primate). Este pliegue en general simplemente se denomina pliegue palmar único.

Consideraciones:

Las líneas pronunciadas, llamadas pliegues de flexión palmar, aparecen en las palmas de las manos y en las plantas de los pies. Las palmas de las manos generalmente tienen tres de estos pliegues, pero, algunas veces, los pliegues transversales se fusionan para formar uno sólo.

Los pliegues palmares se desarrollan mientras el bebé está creciendo en el útero, generalmente hacia la semana 12 de gestación.

Un pliegue palmar único aparece en aproximadamente 1 de cada 30 personas y los hombres tienen el doble de probabilidades con respecto a las mujeres de presentar esta afección. Algunos pliegues palmares son indicio de problemas con el desarrollo y están asociados con trastornos como el síndrome de Down.

  • Reviewed last on: 5/1/2011
  • Neil K. Kaneshiro, MD, MHA, Clinical Assistant Professor of Pediatrics, University of Washington School of Medicine. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.
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