Ingested RBCs (Erythrophagy) seen in:
Erythrophagocytosis (engulfed RBC inside trophozoites) is confirmatory of E. histolytica.Infective form of E. histolytica- Quadrinucleate cyst.
Naegleria fowleri
Entamoeba histolytica
Entamoeba coli
Acanthamoeba
JIPMER 2017