Flashcards
Cestodes
Cards in this deck (16)
- 1Common Name: dwarf tapewormScientific Name:
Hymenolepsis nana - 2Common name: beef tapewormScientific name:
Taenia saginata - 3Common name: pork tapewormScientific name:
Taenia solium - 4Common name: dog tapeworm/ hyatid tapewormScientific name:
Echinococcus granulosus - 5Common name: broadfish tapewormScientific name:
Diphyllobothrium latum - 6Common name: rat tapewormScientific name:
Hymenolepsis diminuta - 7How is this organism diagnosed? (diagnostic stage) Hymenolepsis nanaEggs in feces are diagnostic
*These ova are infective:
can cause autoreinfection by hatching in GI tract before they can hatch* - 8How is this organism diagnosed? (diagnostic stage) Taenia saginataEggs or proglottid in feces are diagnostic
If ova: report Taenia sp. (look identical)
If proglottid, look for numerous (15-30) thin uterine branches to differentiate - 9How is this organism diagnosed? (diagnostic stage) Taenia soliumEggs and/or proglottids in feces.
Eggs are indistinguishable from saginata
Speciate only if there is a proglottid with thicker uterine branches (7-13) - 10How is this organism diagnosed? (diagnostic stage) Diphyllobothrium latumEggs in feces are diagnostic.
Eggs are numerous and do not need concentration techniques. - 11Common name: double-pored dog tapewormScientific name:
Dipylidium caninum - 12How is this organism diagnosed? (diagnostic stage) Dipylidium caninumPassing of egg packets or motile proglottids containing egg packets in stool
*not as commonly found in humans as pets - 13How is this organism diagnosed? (diagnostic stage) Hymenolepsis diminutaEggs in stool specimen diagnostic.
Concentration techniques and repeated examinations
(can be differentiated from H. nana)
*diminuta more commonly found in rats - 14How is this organism diagnosed? (diagnostic stage) Hymenolepsis nanaEggs in feces are diagnostic,
concentration techniques and repeated examinations
*H. nana most common cestode infection - 15How is this organism diagnosed? (diagnostic stage) Echinococcus granulosusDiagnosis: identification of hyatid cysts. Imaging techniques are used to confirm serological tests and symptoms.
A biopsy may be done but carefully:
-rupture of a cyst can lead to recurrence or allergic reaction - 16—
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- Flashcards on Cestodes, created by Natalia Hubbard on 07/02/2019.
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- Natalia Hubbard
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