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Related Concept Videos

Types of Selection01:46

Types of Selection

Natural selection influences the frequencies of particular alleles and phenotypes within populations in several different ways. Primarily, natural selection can be directional, stabilizing, or disruptive. Directional selection favors one extreme trait and shifts the population towards that phenotype while selecting against individuals displaying alternate traits. Stabilizing selection favors an intermediate trait with a narrow range of variation. Deviation from the optimal phenotype towards an...

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Updated: Jun 4, 2026

Quantifying Fish Swimming Behavior in Response to Acute Exposure of Aqueous Copper Using Computer Assisted Video and Digital Image Analysis
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[Salmon patch: a descriptive study].

B Monteagudo1, J Labandeira, A Acevedo

  • 1Servicio de Dermatología, Hospital Arquitecto Marcide, Área Sanitaria de Ferrol, SERGAS, Fundación Novoa Santos, La Coruña, España. benims@hotmail.com

Actas Dermo-Sifiliograficas
|February 15, 2011
PubMed
Summary
This summary is machine-generated.

Salmon patch, a common birthmark, affects 59% of newborns, frequently appearing on the neck and eyelids. Its occurrence is linked to factors like gestational age, sex, and maternal age.

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Area of Science:

  • Neonatal dermatology
  • Pediatric vascular malformations

Context:

  • Salmon patch (infantile hemangioma) is a common congenital vascular malformation.
  • Limited research exists on its prevalence and associated factors.

Purpose:

  • To determine the prevalence and clinical characteristics of salmon patch in newborns.
  • To investigate associations with neonatal and maternal variables.

Summary:

  • A descriptive study of 600 newborns in northwest Spain found a 59% prevalence of salmon patch.
  • The nape of the neck and eyelids were most commonly affected.
  • Higher prevalence was observed in full-term/post-term infants, females, white infants, heavier infants, and those born to mothers aged 30-34 or with no prior pregnancies.

Impact:

  • Identifies key neonatal and maternal factors associated with salmon patch.
  • Provides epidemiological data for understanding this common birthmark.