SummaryIn contrast to P.vivax, the late trophozoite stage of P.ovale ted to retain a recognisable "ring" form for the parasites at late trophozoite stage. They do however become larger and may have some complexity of shape - so the confusion with P.vivax is still possible. James' dots will be prominent at this stage and malaria pigment will generally be seen.
Very early form A very early ring form that is quite robust with fine dots just visible
Early ring form Dots are now more visible and the red cell begins to show fimbriation.
Early ring form The ring has thickened and in an edge form, but with dots and fimbriation
Intermediate ring The ring is large and the red cell shows some ovoid features of shape
