Hellminths Flashcards
Acute phase of schistosomoasis?
Katayama fever - due to schistosomes
How is elephantiasis acquired?
Mosquitos
Trichuris dysentery syndrome
Whipworm
Anemia, rectal prolapse, finger clubbing
Mansonella streptocerca, loa loa (African eye worm), onchocerca (river blindness), Guinea worm
Filiaris subcutaneous (blood and tissue)
Mansonella streptocerca
Subcutaneous filiaris
Chronic phase of schistosomoasis?
Snail fever - due to fibrosis and egg deposition
Worms may come out of the nose or anus
Ascarius
Heavy infestation of this intestinal nematode causes anemia
Hookworm
First manifestation is ground itch
Hookworm
Maculopapular or vesicular pruritic dermatitis
Finger clubbing, growth stunting
Whipworm
Produces mass amounts of eggs
Ascarius
Onchocerca
River blindness (subcutaneous filiaris)
Both male and female in the body
Ascarius
Most common nematode
Pinworm
Perianal skin
Pinworms
Trichuriasis vs. Tricharis dysentric syndrome
trichuriasis: mild, asymptomatic if non-dysenteric, blood loss in stool if dysenteric
Tricharis dysentric syndrome: anemia, blood loss in stool, rectal prolapse, growth stunting, finger clubbing
Soil transmitted nematodes
Acarius
Hookworm
Whipworm
Hyperinfection symptom
Threadworm
Sashimi
Anisakis spp
What type of fluke is in a constant state of copulation?
Schistosomoasis
Motile proglottids
Beef tapeworm
The only helminth that can reproduce in the body
Threadworm
Ingestion of raw crayfish
Lung flukes
May clog bile duct (upper small intestine)
Ascarius (intestinal phase)
Elephantiasis
Wucheria and Brugia
Vitamin B12 deficiency
Fish tapeworm
Undercooked bear, pork, walrus, or cougar jerky
Trichonella spiralis (blood and tissue nematode)
Cysticerosis
Pork tapeworms causing calficied cysts
Larva crawling in foot
Cutaneous larva migrans
S. haemotobium
blood fluke (bladder)
S. mansoni
Blood fluke (intestinal)
Copepods
Guinea worm
Very large nematode, soil transmitted
Ascarius
Eosinophilia
Pulmonary ascariasis (intestinal nematode)
Microfiliarae
Wucheria/Brugia elephantiasis (tropical pulmonary eosinophilia)
Onchocerca (river blindness)
Only tapeworm that does not require a human host
Dwarf tapeworm
Loa loa
African eye worm (type of subcutaneous filiaris)
Lateral spike
Blood fluke
Nocturnal pruitis
Pinworms
Rectal prolapse
Whipworm
Can penetrate intact skin
Hook and thread worm
What type of fluke is schistosomoasis?
Blood fluke
Most common cause of hemoptysis in the world
Lung fluke
Blackfly transmission
Onchocerca river blindness
Prohibition of pork eating
Trichonella spiralis
Sometimes clogs the bile duct
ascarius