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Tuesday, 11 February 2014

Melanoma ?

A 52-year-old woman consulted for an atypical pigmented lesion on her right thigh.

Dermoscopy revealed:

  • asymmetry
  • eccentric pigmentation
  • atypical reticular network
  • depigmentation
  • pink/red area
Clinical and dermoscopic images were in favor of a melanoma.
Lesion was excised and pathology revealed a dermatofibroma.

This case is interesting to show how a dermatofibroma may be atypical:
  • clinical examination: no induration at palpation and asymmetry of colours
  • dermoscopic features