Fig. 5From: Pancreatic ductal adenocarcinoma in a patient with pancreas divisum and gastrointestinal duplication cyst: a case reportMicroscopic findings of resected specimens. a The tumor was composed of moderately differentiated invasive PDAC, and carcinoma in situ and high-grade pancreatic intraepithelial neoplasia surrounded the tumor (white arrow). b Glandular fossa epithelium and gastric fundic gland were observed on the luminal side of the GDC, and mucosal muscle plate and muscle layer were also observed. c The fistula between the GDC and pancreas was histopathologically observed (black arrow)Back to article page