This higher power image demonstrates faint paler stained circular structures in the red blood cells, compatible with small, often called “endogenous”, Heinz bodies. These are barely discernible in the red blood cell (long arrows). The liberated “free” Heinz bodies in the background (arrowheads) are easier to identify. The erythrocyte with the short arrow contains a Howell-jolly body (nuclear fragment, micronucleus) (Wright’s stain, 100x objective)
