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Lichen striatus colocalized with a Spitz nevus.

Corinne Rauck1, Cameron Gudobba1, James R Treat1,2

  • 1Department of Dermatology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA.

Pediatric Dermatology
|August 19, 2021
PubMed
Summary

A rare case report details a 7-year-old girl with a Spitz nevus and lichen striatus co-localized on her elbow. This finding suggests a potential link between Spitz nevi immunogenicity and lichen striatus development.

Keywords:
Spitz nevuslichen striatus

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Area of Science:

  • Dermatology
  • Pediatric Dermatology
  • Pathology

Background:

  • Spitz nevi are benign melanocytic tumors often seen in children.
  • Lichen striatus is an inflammatory dermatosis typically presenting as linear papules.
  • Co-occurrence of these distinct dermatoses is exceptionally rare.

Purpose of the Study:

  • To report a unique case of co-localized Spitz nevus and lichen striatus in a pediatric patient.
  • To explore the potential association between Spitz nevi and lichen striatus.
  • To contribute to the understanding of rare dermatological presentations.

Main Methods:

  • Clinical presentation of a 7-year-old girl with distinct skin lesions.
  • Histopathological examination of the skin lesions.
  • Review of existing literature for similar co-occurrences.

Main Results:

  • Histopathology confirmed the presence of both Spitz nevus and lichen striatus.
  • The Spitz nevus was excised via punch biopsy.
  • The lichen striatus component resolved spontaneously post-biopsy.

Conclusions:

  • This case represents the first reported instance of co-localization of Spitz nevus and lichen striatus.
  • The immunogenicity of Spitz nevi may play a role in the pathogenesis of lichen striatus.
  • Further research is warranted to elucidate the potential relationship between these conditions.