Ramyead, Sheena, Salvador Diaz-Cano, and Lucia Pozo-Garcia. “A Slowly Enlarging Purple Nodule on the Arm”. Dermatology Practical & Conceptual (July 31, 2016): 3–5. Accessed April 30, 2026. https://dpcj.org/index.php/dpc/article/view/dermatol-pract-concept-articleid-dp0603a02.