Plasmodium falciparum trophozoites (and crenated red blood cells) - Blood Smear A classic presentation of Plasmodium falciparum malaria trophozoites (young, ring-stage) in a thin blood smear. RBCs (but interestingly not infected RBCs) are "crenated" (shrunken w/ scalloped edge) Rich Davis, PhD, D(ABMM), MLS @richdavisphd #trophozoites #Plasmodium #falciparum #Blood #Smear #peripheral #clinical #microscopy #malaria #microbiology