Fig. 1

Skin lesions at initial presentation (a–c) and after treatment (d–f). Erythematous nodules with peripheral ridges and central ulceration located on the right medial malleolus (a), right lateral malleolus (b), and the top of the left foot (c). After treatment, the erythema has disappeared and the nodules on the right medial malleolus (d), right lateral malleolus (e), and top of the left foot (f) have resolved