cases, pancreas Week 370: Case 5 April 26, 2023 pathadmin 1. Presented by Ralph Hruban, M.D. and prepared by ChanJuan Shi, M.D., Ph.D.This patient presented with a very large pancreatic mass. The mass was resected. The patient denied having had a previous malignancy.Gastrointestinal stromal tumorLeiomyosarcomaUndifferentiated carcinomaSchwannoma 1. Presented by Ralph Hruban, M.D. and prepared by ChanJuan Shi, M.D., Ph.D.This patient presented with a very large pancreatic mass. The mass was resected. The patient denied having had a previous malignancy.