"The" "appearance" of "stacked cells" within "fresh" blood samples "may indicate" more than just a "minor" finding. "Rouleaux"—which appear as stacks of red blood cells, resembling coins—form when certain" https://anlisis-de-sangre-en-viv329576.blogtecnos.com/626765/rouleaux-in-live-blood-understanding-formation-and-significance