cases, extremity Week 99: Case 4 April 26, 2023 pathadmin 1. Presented by Ralph Hruban, M.D. and prepared by Lynette S. Nichols, M.D. This 48 year old man presented with a painful subcutaneous mass in his arm. Glomus tumorHemangiomaLieomyosarcomaAngiofibroma 1. Presented by Ralph Hruban, M.D. and prepared by Lynette S. Nichols, M.D. This 48 year old man presented with a painful subcutaneous mass in his arm.