Pancreatic Intraepithelial Neoplasia (PanIN) is a well-defined precursor histologically to aggressive pancreas ductal adenocarcinoma. What is the Pathology of Pancreatic Intraepithelial Neoplasia (PanIN)? The pathology of pancreatic intraepithelial neoplasia (PanIN): -Etiology: The cause of pancreatic intraepithelial neoplasia (PanIN) is idiopathically…