To view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 video Movie 1 Reversal of vacuolization by cell-cell contact. It is shown how a single vacuolated cell (arrow) loses its vacuole when coming into contact with several nonvacuolated cells. The Movie was taken 48 hours after adding 16% FBS. Basal-type lumenogenesis in extraembryonic endoderm stem cells models the early visceral endoderm Minjae Kim, Yixiang Zhong, Kyoung Hwa Jung, Young Gyu Chai, and Bert Binas J Cell Sci 2019. 132:None-None; doi: 10.1242/jcs.230607 Download Original Video