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Related Concept Videos

Schemas01:42

Schemas

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A schema is a mental construct consisting of a cluster or collection of related concepts (Bartlett, 1932). There are many different types of schemata, and they all have one thing in common: schemata are a method of organizing information that allows the brain to work more efficiently. When a schema is activated, the brain makes immediate assumptions about the person or object being observed.
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Nevus Depigmentosus: An Update.

Naveen Kumar Kansal1

  • 1Department of Dermatology and Venereology, All India Institute of Medical Sciences, Rishikesh, India; kansalnaveen@gmail.com.

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Summary
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Nevus depigmentosus is a common hypopigmentation disorder presenting as a nonprogressive macule in infancy. It arises from somatic mutations affecting melanocyte function, with rare systemic associations.

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Area of Science:

  • Dermatology
  • Genetics
  • Pediatrics

Background:

  • Nevus depigmentosus is a congenital disorder characterized by hypopigmentation.
  • It presents as a nonprogressive hypomelanotic macule, typically in infancy or childhood.
  • Considered a form of cutaneous mosaicism, it results from somatic mutations impacting pigmentary genes and melanocyte function.

Purpose of the Study:

  • To provide a comprehensive overview of nevus depigmentosus.
  • To discuss its etiology, clinical presentation, and management.
  • To highlight the importance of genetic factors and counseling.

Main Methods:

  • Review of existing literature on nevus depigmentosus.
  • Analysis of clinical presentations and etiological factors.
  • Evaluation of treatment modalities and outcomes.

Main Results:

  • Nevus depigmentosus affects all sexes and races, commonly presenting in early life.
  • Clinical forms include localized, segmental, and systematized patterns.
  • While generally benign, rare associations with systemic features exist.

Conclusions:

  • Nevus depigmentosus is a benign, nonprogressive hypopigmentation disorder with a genetic basis.
  • Management is typically conservative, focusing on reassurance and counseling.
  • Limited treatment options exist, with variable success rates for cosmetic camouflage.