Parasites Of Dogs And Cats In The Skin, Urinary System And Musculature Flashcards
What are the parasites of the skin, urinary system and musculature?
Dracunculus insignis
Pearsonema (Capillaria) species
Diocytoohyma renale
Trichinella spiralis
Host and location of Dracunculus insignis
Dogs, cats, and raccoons
Migrate to the skin of the legs
Infective stage of Dracunculus insignis
L3 larva inside the intermediate host (Cyclops genus)
Characteristics of Dracunculus insignis
Adults:
Females- 120 cm
Males- 4 cm
Why are the intermediate hosts of Dracunculus insignis?
Copepods (cyclops genus)
Female has 2 large sacs
Pathogenicity of Dracunculus insignis
Rare in dogs and cats
Fluid- secreting (weeping) sores seen on skin caused by adult female worms
Diagnosis of Dracunculus insignis
Direct smear of fluid aspirated from weeping sores
What is the treatment of Dracunculus insignis?
Surgical removal of female worm from the lesion
Dracunculus medinensis is found in humans known as_________~~
Guinea worm
What are the hosts of Pearsonema (Capillaria) pelican and Pearsonema (Capillaria) feliscati?
Dogs, cats, foxes, wolves
P. Plica- mostly in dogs
P. Feliscati- mostly in cats
Description of P. Plica and P. Feliscati
Thin
Posterior slightly thicker than anterior
Stichosome esophagus (made of stichocyte cells)
Eggs: double-plugged
Where are P. Plica and P. Feliscati located and the prepatent period ?
Urinary bladder
2 months
What is the intermediate host of P. Plica and P. Feliscati?
Earthworm
What is the infective stage of P. Plica and P. Feliscati?
L1 larva inside intermediate host
Definitive host infective by ingesting earthworm containing L1 larva
Pathogenicity and diagnosis of P. Plica and P. Feliscati
Heavy infection causing cystitis
Examination of urine sediment and finding of double-plugged eggs
How do you treat P. Plica and P. Feliscati?
Fenbendazole
Invermectin
Hosts of Dioctyphyma renale
Dogs, foxes, wolves, cats (rare) , minks (primary host)
largest nematode of vet importance
Infective stage of pathogenicity of Dioctyphyma renale
L1 larvae inside paratenic host (frog, fish)
Destruction of kidney parenchyma
Diagnosis of Dioctyphyma renale
Examination of urine sediment, radiograph or abdominal ultrasound (adult worms)
Eggs of Dioctyphyma renale
Rough
Double- plugged
Two cells
80 micrometers long
How is Dioctyphyma renale treated?
Surgical removal of adult worms and affected kidney
What is the host of Trichnella spiralis
Domestic and wild animals, man (public health concern)
Identification of Trichnella spiralis
Stichosome esophagus
Double-plugged eggs
Pathogenicity of Trichnella spiralis
Encysts within skeletal muscle of host such as pigs, bear, rodents (humans infected by eating uncooked pork or bear)
Diagnosis of Trichnella spiralis
Muscle biopsy for L1
