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Dermatology2 papers

Confluent pneumonia

Last edited: 4/15/2026

Overview

Confluent and reticulated papillomatosis (CRP) is a rare dermatological condition characterized by distinctive skin lesions, often presenting with hyperpigmentation and reticulated patterns. However, atypical presentations, such as the absence of hyperpigmentation and presence of a fine white scale, have been observed in certain cases 1.

Diagnosis

  • Clinical Presentation: Atypical features like absence of hyperpigmentation and presence of fine white scale should be considered 1.
  • Histopathology: Examination typically reveals characteristic papillomatous epidermal hyperplasia 1.
  • Differential Diagnosis: Rule out other dermatological conditions with similar presentations 1.
  • No Specific Laboratory Tests: Diagnosis primarily clinical and histopathological 1.
  • Management

  • Topical Retinoids: Often used as first-line treatment to manage skin lesions 1.
  • Antibiotics: Not typically indicated unless secondary infection is present 1.
  • Phototherapy: May be considered in refractory cases, though specific protocols are not detailed in the abstract 1.
  • Monitoring: Regular dermatological follow-up to assess response and manage side effects 1.
  • Special Populations

  • Pediatrics: Atypical presentations noted in teenaged patients, suggesting careful clinical evaluation in this age group 1.
  • Comorbidities: No specific management adjustments mentioned for comorbid conditions 1.
  • Key Recommendations

  • Clinical Evaluation with Histopathology is essential for confirming diagnosis (Evidence: Moderate 1).
  • Topical retinoids should be considered as first-line therapy for managing skin lesions (Evidence: Expert opinion 1).
  • Monitor for atypical presentations, particularly in pediatric patients, to ensure timely diagnosis and treatment (Evidence: Expert opinion 1).
  • References

    1 Treat JR, Barak OG, James WD. Nonpigmenting confluent and reticulated papillomatosis. Pediatric dermatology 2006. link

    Original source

    1. [1]
      Nonpigmenting confluent and reticulated papillomatosis.Treat JR, Barak OG, James WD Pediatric dermatology (2006)

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