Cestodes Flashcards
Hymenolepsis nana
Dwarf tapeworm, egg with bipolar filaments emerging from embryo; sometimes booklets can be seen, colorless shell
Hyemnolepis diminuta
Rat tapeworm, egg without bipolar filaments; 3 pair of hooklets if seen
Taenia saginata
Beef tapeworm, egg with radial striations and 3 pairs of hooklets identical to T. solium and Echinococcus granulosus; proglottids with 15-40 lateral uterine branches; scolex had 4 suckers
Taenia solium
Pork tapeworm, egg identical to T. saginata, proglottids with 7-12 lateral uterine branches; scolex has 4 suckers plus a center crown of hooks
Echinococcus granulosus
Dog tapeworm, egg identical to T. saginata and T. solium, hydatid cyst
Diphylobothrium latum
Broadfosh tapeworm, egg with operculum and opposite small knob; double walled shelf if visible; grooves sucker on scolex; proglottids with rosette and broader vs length
Dipylidium caninum
Dog, cat, cucumber tapeworm, egg packets