**3.3 Pancreatic organoids**

The capability of pancreatic ducts in in-vitro expansion and development of threedimensional hollow structures in the presence of collagen as the suitable medium is utilized in the development of pancreatic organoids [31]. Many recent developments were carried out in establishing three-dimensional adult pancreatic organoids as well as fetal pancreatic organoids and both types of organoids were found to differ in morphology similar to that of parent cells [32].
