Clinical features and long-term follow-up of 20 cases of parakeratosis pustulosa

Antonella Tosti, Anna Maria Peluso, Valeria Zucchelli

Research output: Contribution to journalArticlepeer-review

29 Scopus citations


We report the clinical features and long-term follow-up of 20 pediatric patients with parakeratosis pustulosa (PKP). In eight children PKP was considered as a clinical manifestation of psoriasis. Of these, three children had skin psoriasis at the time of our observation, two developed nail psoriasis, and three developed psoriatic pitting during follow-up. Parakeratosis pustulosa was considered a symptom of allergic contact dermatitis in four patients, whereas atopic dermatitis was possibly responsible for PKP in two patients. A complete recovery from disease was observed in 11 patients. The results of our study suggest that PKP is not a single entity but rather represents a nail symptom that can be produced by several inflammatory diseases, including nail psoriasis, atopic dermatitis, and contact dermatitis.

Original languageEnglish (US)
Pages (from-to)259-263
Number of pages5
JournalPediatric Dermatology
Issue number4
StatePublished - Jul 1 1998
Externally publishedYes

ASJC Scopus subject areas

  • Pediatrics, Perinatology, and Child Health
  • Dermatology


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