Flukes Flashcards
Platynosomum concinnum common name
Lizard Poisoning Fluke
Platynosomum concinnum
- DH and where it goes
- Region
Cat bile ducts
Florida (tropical)
Platynosomum concinnum egg
operculated, too dense for float, do sedimentation
Platynosomum concinnum Life Cycle
- From bile duct, eggs leave in feces
- first IH - terrestrial snail
- sporocyst ingested by pill bug
- cercariae/pill bug is eaten by lizard/toad
- cercariae encyst in bile duct of lizard
- cat eats lizard
- excyst and migrate to bile duct and mature
fluke life stages
miracidium in egg
becomes sporocyst
cercariae
metacercariae
Platynosomum concinnum infective stage
Cercariae
Platynosomum concinnum prepatent period
8-12 weeks
Platynosomum concinnum clinical signs
normally no severe disease
chronic - liver failure, biliary hyperplasia, inappettance
- lizard poisoning when high number are ingested (lethargy, fever, emaciation, vomiting)
Fluke and egg sizes?
Lizard poisoning: small 4-8mm; 40x30 um, operculated
Lung Fluke: small 7-16mm; LARGE 100x50um operculated nodules on edges
Salmon: tiny 1-2mm; Large 60x50um operculated yellow/brown
Blood: tiny up to 7/9mm; Large 80x50mm NONoperculated. Female fits into male
Alaria: spoon shaped 2-4mm, Large bubbly egg 110x70um operculated
Intermediate hosts of flukes?
Lizard: land snail, lizard +/- pill bug Lung: water snail, crayfish/crab Salmon: water snail, fish Blood: water snail Alaria: water snail, tadpole (other paratenic hosts)
Definitive hosts of flukes?
Lizard: Cat Lung: Cat/Dog (mink, muskrat) Salmon: Cat/Dog (any fish eating mammal) Blood: Dog (bobcat, raccoon) Alaria: CATS/Dog (other mammals)
Paragonimus Kellicotti is the?
Lung Fluke
Lung Fluke scientific name?
Paragonimus Kellicotti
Nanophyetus Salmincola is the?
Salmon poisoning fluke
Salmon poisoning fluke scientific name?
Nanophyetus Salmincola
Heterobilharzia Americana is the?
Canine blood fluke
Canine blood fluke scientific name?
Heterobilharzia Americana
