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Perforating lichen nitidus.

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Lichen nitidus rarely shows epidermal perforation, a finding that complicated diagnosis in this unique case. This rare presentation highlights diagnostic challenges in dermatology.

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Area of Science:

  • Dermatology
  • Histopathology

Background:

  • Transepidermal elimination is a known phenomenon in various skin conditions.
  • Lichen nitidus is a rare inflammatory dermatosis characterized by small papules.

Observation:

  • A case of lichen nitidus presented with an unusual finding of epidermal perforation.
  • This feature posed diagnostic challenges, differing from typical lichen nitidus presentations.

Findings:

  • The presence of epidermal perforation in lichen nitidus is exceptionally rare.
  • Histopathological examination confirmed lichen nitidus with this unique epidermal alteration.

Implications:

  • This case expands the understanding of lichen nitidus's histopathological spectrum.
  • Recognizing epidermal perforation is crucial for accurate diagnosis of atypical lichen nitidus cases.