Cestodes Flashcards
Spatulate scolex 2 bothria (sucking grooves) Testes: dorsolateral part of proglottid Dark rosette-like coiled uterus: middle Symmetrical bilobed ovary: posterior 3rd
Diphyllobothrium latum
Cestode that is Pseudophyllidea (false tapeworm) ?
Diphyllobothrium
Most common: diphyllobothrium latum ( broad fish tapeworm)
Usually found in subarctic and temperate regions
Northern hemisphere
Uganda, chile, brazil
7 human infections have been documented in the philippines
Diphyllobothrium Latum
*disintegrates only when the segment has completed its reproduction function
Diagnostic stage of diphyllobothrium?
Operculated eggs
Diphyllobothrium latum:Mode of transmission?
Ingestion of raw or half-cooked fish with PLEROCERCOID
Plerocercoid aka sparganum
Diphyllobothrium
1st intermediate host?
Copepods
2nd intermediate host of diphyllobothrium?
Freshwater fishes (minnows), salt water fishes
Definitive host of diphyllobothrium?
Man, other animals
Has SALT CRAVINGS as one of its associated symptoms.
Other s/sx: Diarrhea, vomiting, abdominal discomfort, weightlossand weakness
Diphyllobothrium …..
Has vit. B12 deficiency as one of its complications?
Diphyllobothrium…
Aka bothriocephalus anemia or tapeworm pernicious type of anemia.
It is hyperchromati, megaloblastic anemia with thrombocytopenia and leucopenia