Surgical & Cosmetic Dermatology (Dec 2022)

Agminated blue nevus over acne scars: coincidence or pathophysiological relationship?

  • Deborah Heloisa Cezar Dourado,
  • Nathália Bacni Garcia,
  • Marilda Aparecida Milanez Morgado de Abreu,
  • Vinícius de Souza,
  • Ana Claudia Cavalcante Esposito

DOI
https://doi.org/10.5935/scd1984-8773.2022140088
Journal volume & issue
Vol. 14

Abstract

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Blue nevus is a benign lesion arising from dermal melanocytes containing large amounts of melanin. The agminated variant presents a cluster of blue nevus lesions with linear or blaschkoid distribution. We report two cases of patients with agminated blue nevus that developed on previous acne scars, and dermoscopy helped a lot in the differential diagnosis. This is the first occurrence found in the literature of agminated blue nevus that appeared on a previous scar, which may have occurred by chance or as a result of the collagen remodeling process inherent to the healing process.

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