brain, cases Week 180: Case 4 April 26, 2023 pathadmin 1. Presented by Theresa Chan, M.D. and prepared by Marc Halushka M.D., Ph.D.52-year-old male with an intracranial mass.Malignant peripheral nerve sheath tumorNeurofibromaSchwannomaMeningioma 1. Presented by Theresa Chan, M.D. and prepared by Marc Halushka M.D., Ph.D.52-year-old male with an intracranial mass.