Figure 4.

Snapshot of a deformable, circulating cancer cell: (a) in vessel with diameter of 8.82   $\mu \text{m}$, a cell with stiffness of 30   $\mu$N/m exhibits bullet motion. (b) in vessel with diameter of 14   $\mu \text{m}$, a cell with stiffness of 30   $\mu$N/m exhibits rolling. Flow direction is from left to right. The colored points on cell surface show the microvilli involved in binding.