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Pityriasis rubra pilaris, type 1.

Alexandria V Booth1, Linglei Ma

  • 1Department of Dermatology, New York University School of Medicine, USA.

Dermatology Online Journal
|January 13, 2006
PubMed
Summary

Pityriasis rubra pilaris (PRP) is a rare skin condition often misdiagnosed as psoriasis. This case highlights successful treatment of PRP using acitretin and narrow-band ultraviolet B phototherapy.

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Area of Science:

  • Dermatology
  • Immunodermatology

Background:

  • Pityriasis rubra pilaris (PRP) is a rare, chronic papulosquamous disorder of unknown etiology.
  • It is often misdiagnosed due to overlapping clinical features with other dermatoses like psoriasis.

Observation:

  • A 57-year-old woman presented with dry, burning, and itching skin, initially diagnosed as psoriasis.
  • Clinical examination and histopathology confirmed the diagnosis of pityriasis rubra pilaris.

Findings:

  • Treatment involved oral acitretin, a systemic retinoid, combined with narrow-band ultraviolet B (NB-UVB) phototherapy.
  • This combination therapy led to improvement in the patient's skin condition.

Implications:

  • This case underscores the importance of accurate diagnosis for effective PRP management.
  • Combined acitretin and NB-UVB phototherapy represents a viable treatment option for pityriasis rubra pilaris.
  • Further research into the pathogenesis and optimal treatment strategies for PRP is warranted.

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