cases, pancreas Week 106: Case 4 April 26, 2023 pathadmin 1. Presented by Ralph Hruban, M.D. and prepared by Lynette S. Nichols, M.D.This 75 year old man presented with an ill-defined mass in the pancreas.Pancreatic intraepithelial neoplasiaInfiltrating Ductal AdenocarcinomaBenign reactive glandsAtrophy 1. Presented by Ralph Hruban, M.D. and prepared by Lynette S. Nichols, M.D.This 75 year old man presented with an ill-defined mass in the pancreas.