VIM and congestive heart failure: CHF fibroblasts, on the other hand, were larger by 63% (diameter of 13.4±0.4 μm; 77 cells/3 dogs) compared to control (8.4±0.3 μm diameter; 49 cells/3 dogs; P<0.001) and displayed more extensive cytoplasm with discrete pseudopodal elongations and structured vimentin staining (green, Figure 5D).