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Friday 4 July 2008


Asymmetric lesion with pink homogeneous area

A 68-year old man consulted for an atypical pigmented lesion on his left lumbar area.

Dermoscopy revealed a melanocytic lesion characterized by:
  • asymmetry
  • an atypical pigment network
  • a pink homogeneous area
  • a white area of regression
  • linear-irregular vessels
  • polymorphous vessels
Polymorphous and linear-irregular vessels

Atypical pigment network (circle)

White area of regression (circle)

This lesion was highly suspicious of melanoma and excised.

Pathology revealed a superficial spreading melanoma (SSM) in situ developed on a melanocytic nevus developed on a melanocytic nevus