cases, soft tissue Week 345: Case 1 April 26, 2023 pathadmin 1. Presented by Ralph Hruban, M.D. and prepared by Zarir E. Karanjawala, M.D., Ph.D.This young adult with neurofibromatosis type 1 was found to have a large soft tissue mass in his leg.MelanomaBednar tumorNeurofibromaPigmented neurofibroma 1. Presented by Ralph Hruban, M.D. and prepared by Zarir E. Karanjawala, M.D., Ph.D.This young adult with neurofibromatosis type 1 was found to have a large soft tissue mass in his leg.