[Pedal papules in newborn infants]

M Larralde de Luna1, J Ruiz León, H N Cabrera

  • 1Hospital Posadas de Haedo (provincia de Buenos Aires), Argentina.

Insights

Newborns can develop pedal papules at birth, differing from adult presentations. These infant lesions are solitary, larger, and located on the heel, with a proposed new physiopathogenic model.

Area of Science:

  • Dermatology
  • Pediatric Medicine
  • Pathophysiology

Context:

  • Pedal papules are typically observed in adults.
  • The presentation and etiology in newborns are not well-documented.
  • Understanding neonatal dermatological conditions is crucial for early diagnosis and management.

Purpose:

  • To report and characterize pedal papules in newborn infants.
  • To compare neonatal pedal papules with adult presentations.
  • To propose a physiopathogenic model for neonatal pedal papules.

Summary:

  • Four cases of newborns presenting with pedal papules since birth are described.
  • Neonatal lesions were solitary, larger, located on the medial plantar heel, and present at birth.
  • An obvious piezogenic factor was absent in these infants.

Impact:

  • This study highlights distinct features of pedal papules in newborns.
  • It provides a basis for differentiating neonatal from adult lesions.
  • A proposed physiopathogenic model may aid future research and clinical understanding.