"The" "presence" of "stacked cells" within "live" blood samples "is a sign of" more than just a "minor" finding. "Rouleaux"—which appear as stacks of red blood cells, resembling coins—form when "various" conditions https://comunicacin-con-ngeles127352.remotelifeblog.com/619103/rouleaux-in-live-blood-understanding-formation-and-significance