58 year old man with a long-standing lesion

A 58-year-old man, hospitalized for chronic kidney disease, presented with eczema. During a full skin examination, we noticed this lesion on the plantar surface of his right foot - he reports that it has been present since birth and does not worry him.

What do you think?

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Which structures do you see ?

  • Parallel ridge pattern

  • Diffuse pigmentation of variable shades of brown

  • Multi Component pattern

  • Atypical fibrillar pattern

  • All of the above