Class Nematoda inlcludes...
- Roundworms
- Hookworms
- Whipworms
- Threadworms
What is the common name for Spirocerca Lupi?
Esophageal Worm
What are the hosts for Spirocerca Lupi?
– Final: Dogs (wild canids)
– IH: Dung beetle
– PH: Chickens, birds, lizards
How do you ID Spirocerca Lupi Adults?
RED worms
ID: Spirocerca Lupi Eggs
Small and elongated
30-35 um
L1
Life Cycle of Spirocerca Lupi?
- Indirect
- ELLLLLA (L3 in dung beetle is infective)
- Larvae migrate to thoracic
aorta then migrate to esophagus
3 months later (PPP = 6 month
What is a prepatent period (PPP)?
Time from infection until the adult parasite is producing eggs, larvae or other immature forms.
Sites of Infection: Spirocerca Lupi
– Adults in granulomas in esophagus and stomach
– Larvae in wall of aorta
Pathogenesis/ Lesions:
Spirocerca Lupi
– Larvae scar the aorta
– Clinical signs from granulomas (regurg, dysphagia, etc)
– Osteosarcoma
– Osteopathy of long bones
– Spondylosis of thoracic vertebrae
Clinical Signs: Spirocerca Lupi
– Regurgitation
– Dysphagia (trouble swallowing)
– Emaciation
– Loss of condition
Diagnosis: Spirocerca Lupi
– Eggs sometimes difficult to find in feces/ vomitus
Treatment: Spirocerca Lupi
Macrocyclic Lactones
Common Name:
Physaloptera spp
Stomach Worm
Hosts: Physaloptera spp
– Final: Dogs/ Cats
– IH: Beetles/ Cockroaches
– PH: Birds/ Snakes
