Exogenous ochronosis in a Chinese patient: use of dermoscopy aids early diagnosis and selection of biopsy site

Singapore Med J. 2014 Jan;55(1):e1-3. doi: 10.11622/smedj.2014013.

Abstract

The diagnosis of exogenous ochronosis is often challenging and requires a high index of suspicion. Herein, we report a case of exogenous ochronosis in a Chinese patient. The condition was caused by the use of bleaching agents, including creams containing hydroquinone. We demonstrate the use of dermoscopy as an invaluable tool for the early recognition of the condition, as well as in the selection of an appropriate site for a skin biopsy.

Publication types

  • Case Reports

MeSH terms

  • Alkaptonuria
  • Biopsy
  • Bleaching Agents / adverse effects
  • China
  • Dermoscopy / methods*
  • Humans
  • Hydroquinones / adverse effects*
  • Male
  • Melanosis / drug therapy*
  • Middle Aged
  • Ochronosis / diagnosis*
  • Ochronosis / therapy
  • Skin / drug effects
  • Skin / pathology
  • Treatment Outcome

Substances

  • Bleaching Agents
  • Hydroquinones
  • hydroquinone

Supplementary concepts

  • Alkaptonuric ochronosis