Necrobiosis lipoidica diabeticorum

History

          A 45-y-o man with type II diabetes mellitus since 5 years presented with an irregular, large, shiny and waxy atrophic plaque with yellowish-brown hue and surface telangiectasia on the shin of more than three years duration. Many atrophic small rounded scars are seen in the middle part of the plaque due to previous ulcerations.