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[Granular parakeratosis].

M González de Arriba1, L Vallés-Blanco, I Polo-Rodríguez

  • 1Servicio de Dermatología, Hospital Universitario 12 de Octubre, Madrid. mgdearriba@yahoo.es

Actas Dermo-Sifiliograficas
|June 9, 2007
PubMed
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Granular parakeratosis, a rare skin condition, presents as itchy, dark plaques in skin folds. A recent case showed positive results with tacalcitol treatment, offering a new therapeutic option.

Area of Science:

  • Dermatology
  • Histopathology

Background:

  • Granular parakeratosis is an uncommon acquired disorder of keratinization.
  • It typically manifests as pruritic, erythematous plaques in intertriginous areas like the axilla.

Observation:

  • A 50-year-old woman presented with a two-year history of brownish, hyperkeratotic axillary plaques.
  • Histopathology revealed characteristic features of granular parakeratosis, including stratum corneum thickening and retained keratohyaline granules.

Findings:

  • The patient experienced a favorable response to topical tacalcitol treatment.
  • This suggests tacalcitol may be an effective therapeutic option for granular parakeratosis.

Implications:

  • This case highlights a potential new treatment for granular parakeratosis.

Related Experiment Videos

  • Further research into the efficacy and mechanism of tacalcitol in this condition is warranted.