Simulation of steady-state diffusion gradients in a suspension of Ehrlich ascites tumor cells (25% vol/vol) in ascites fluid in the peritoneal cavity.

This simulates conditions under which Erhlich ascites cells were grown in Warburg’s laboratory (5, 6) with a maximal diffusion distance of 630 μm from blood vessel into ascites fluid. This simulation resolves a paradox discussed by Kemp and Mendel (58). Sixty three layers of ascites fluid with a radius increment of 10 µm per layer were simulated.