Fischer, Daniel, and Graham Litchman. “A Case of a Large, Painful Dermatofibrosarcoma Protuberans Arising from a Traumatic Scar”. SKIN The Journal of Cutaneous Medicine 7, no. 3 (May 20, 2023): 840–843. Accessed July 22, 2024. https://jofskin.org/index.php/skin/article/view/2142.