Figure 9.

Dermatofibrosarcoma protuberans. (A), Tumor on the right infraclavicular region and first stage margins. (B), Dermoscopy showing thin and linear arboriform telangiectasias, shiny white streaks, pink amorphous area, surrounded by a pigmented network. (C) Histological section of Mohs surgery specimen showing a fusocellular proliferation in the dermis and subcutaneous tissue, consistent with dermatofibrosarcoma protuberans (Hematoxylin & eosin ×100). Preoperative immunohistochemistry was positive for CD34. (D), Surgical margins mapped with different colors. (E), Surgical wound and primary closure design. (F), 1-month postoperatively. Erythema resolved over time.