cases, skin Week 26: Case 1 April 26, 2023 pathadmin 1. Presented by Fred Askin, M.D. and prepared by Angelique W. Levi, M.D.The patient is a 20-year-old with a firm, cutaneous nodule in the upper arm. /images/1854b.jpg/images/1854c.jpg/images/1854d.jpgKeratinous cystPilomatrixomaProliferating trichilemmal cystSquamous cell carcinoma Loading...