Pine tar callus: A mimicker of a melanocytic lesion

Pediatr Dermatol. 2019 May;36(3):379-380. doi: 10.1111/pde.13773. Epub 2019 Feb 27.

Abstract

We report a case of acral pigmented lesions due to pine tar, a common compound used on baseball bats to improve grip, deposition. The patient presented with an acute concern for a new melanocytic lesion, and dermoscopy revealed large brown globules, not typical of melanocytic neoplasms. We propose that the coupling of dermoscopy and a thorough clinical history of exogenous exposures in similar clinical presentations can provide reassurance in evaluating atypical appearing pigmented lesions.

Keywords: neoplasms-benign; nevi-melanocytic.

Publication types

  • Case Reports

MeSH terms

  • Adolescent
  • Diagnosis, Differential
  • Humans
  • Male
  • Melanoma / diagnosis*
  • Pigmentation Disorders / diagnosis*
  • Pigmentation Disorders / etiology*
  • Resins, Plant / adverse effects*
  • Skin Neoplasms / diagnosis*

Substances

  • Resins, Plant
  • rosin