cases, soft tissue Week 416: Case 3 April 26, 2023 pathadmin 1. Presented by Peter Illei, M.D. and prepared by Hillary Ross, M.D.45 y.o. white male patient with left sciatic nerve mass.Cystic schwannomaArteriovenous malformationMetastatic melanomaSpindle cell lipoma 1. Presented by Peter Illei, M.D. and prepared by Hillary Ross, M.D.45 y.o. white male patient with left sciatic nerve mass.