Electron microscopic observations of intravitreal Cysticercus cellulosae (Taenia solium).

Cysticercus cellulosae, the larval stage of Taenia solium, was studied by light and electron microscopy after its removal from the vitreous. The ultrastructure of the larva is highly organized and displays a superficial tegument and deeper parenchyma. The tegument contains a microvillous surface overlying a syncytial cytoplasm. A deeper muscular layer overlies the parenchyma, within which are highly specialized structures important in water balance, flame cells, and acid-neutralizing calcareous corpuscles.