cases, soft tissue Week 239: Case 4 April 26, 2023 pathadmin 1. Presented by Pedram Argani, M.D. and prepared by Todd Sheridan, M.D.39 year-old HIV-positive male with a leg mass.SchwannomaFibromatosisSolitary fibrous tumorLeiomyosarcoma 1. Presented by Pedram Argani, M.D. and prepared by Todd Sheridan, M.D.39 year-old HIV-positive male with a leg mass.