Figure 6d. Heterotopic pancreatic tissue in Meckel diverticulum. (a) Photomicrograph (original magnification, x10; H-E stain) shows a round focus of heterotopic pancreatic tissue (arrow) and multiple heterotopic gastric glands (arrowheads). Extensive ulceration is seen. (b) Photomicrograph (original magnification, x160; H-E stain) shows pancreatic acini. (c) Photomicrograph (original magnification, x80; H-E stain) shows pancreatic acinar cells and islets (arrow). (d) Photomicrograph (original magnification, x64; H-E stain) shows pancreatic ducts (*) surrounded by smooth muscle.