Fig. 3From: Ultrastructural study of vitellogenesis of Ligula intestinalis (Diphyllobothriidea) reveals the presence of cytoplasmic-like cell death in cestodesSchematic diagram of the cytodifferentiation of vitellocytes of Ligula intestinalis . I, immature vitellocyte; II, early stage of vitellocyte development; III, advanced stage of vitellocyte maturation; IVA and IVB, mature vitellocyteBack to article page