“…Moreover, extragastric AED (EGAED) are much rarer than EGHAC and have not yet been listed in the WHO classification. We searched the PubMed database and found a few case reports or series of esophageal, colorectal, and biliary AED [ [11] , [12] , [13] , [14] , [15] ]; and only one case report of pancreatic AED that was written in Chinese [ 16 ]. However, there are tumors showing AED morphology in a case series of “hepatoid” tumor of the bile duct [ 8 ].…”