A 16-year-old adolescent presented with 1-year history of asymptomatic progressive skin lesions affecting the trunk. He reported that the lesions had initially started as brownish flat lesions, some of which had recently developed lumps within them. He denied manipulation or trauma at the sites of the lesions. He had no associated systemic symptoms. He also denied a family history of a similar condition or of keloid formation. He was otherwise healthy and on no drug therapy. Physical examination revealed multiple, well-demarcated, hyperpigmented, indurated atrophic plaques. Within some of these plaques, skin-colored to hyperpigmented firm nodules were present, some of which were arranged in a linear pattern (Fig.1).A punch biopsy that included parts of an indurated plaque and contained nodular lesion was taken (Figs. 2-4).
展开▼
