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Pachydermatous eosinophilic dermatitis

W K Jacyk1, I W Simson, D N Slater

  • 1Department of Dermatology, University of Pretoria, Republic of South Africa.

The British Journal of Dermatology
|March 1, 1996
PubMed
Summary
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Three South African girls developed a unique skin condition, pachydermatous eosinophilic dermatitis, with eosinophil buildup in the skin. Treatment with dapsone, prednisolone, and cetirizine showed positive results.

Area of Science:

  • Dermatology
  • Immunology
  • Pathology

Background:

  • Atopic dermatitis and onchodermatitis are common skin conditions.
  • Eosinophilia, an increase in eosinophils, can indicate various underlying health issues.

Observation:

  • Three South African black teenage girls presented with extensive, itchy papular lesions on thickened skin.
  • Patients exhibited unusual hypertrophic genital lesions and elevated peripheral blood eosinophil counts.

Findings:

  • Histological examination revealed an eosinophil-rich infiltrate and fibrosis in skin biopsies.
  • Indirect immunofluorescence confirmed extensive extracellular deposition of eosinophil granule major basic protein.
  • A novel condition, pachydermatous eosinophilic dermatitis, is proposed.

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Implications:

  • This study identifies a new dermatological condition characterized by skin eosinophilia.
  • Understanding this condition aids in diagnosing and managing similar eosinophilic skin diseases.
  • The findings contribute to the broader understanding of eosinophil-mediated inflammatory processes in the skin.