Cestodes Flashcards
Larvae in undercooked beef
IH: cattle
Intestine
Praziquantel
Intestinal obstruction, neurocysticercosis
T. saginata
Eggs, larvae in undercooked pork
IH: pigs
Intestines
Praziquantel
T. Solium
Larvae in undercooked fish
IH: fish
Intestine
Praziquantel
B12 deficiency
D. latum
Eggs in food contaminated with dog feces
IH: sheep, man
Liver, lungs, brain
Albendazole, PAIR (puncture, aspiration, injection, reaspiration)
Smallest tapeworm
Ruptured cyst: anaphylaxis
E. granulosus
Taenia
Infective stage/ diagnostic stage
Cysticerci, eggs (T. solium)/ Gravid proglottids (feces)
D. Latium
Infective stage/ diagnostic stage
Pterocercoid/ unembryonated egg in the feces
E. granulosus
Infective stage/ diagnostic stage
Embryonated egg/Hyatid cysts
DH: Foxes
IH: rodents
Multiloculated cyst
Echinococcus multicularis
Dwarf tapeworm
Six hooked larvae
MC tapeworm in developed countries
Hymenolepsis nana
Rat tapeworm
Hymenolepsis dimunata
Tapeworm of dogs and cats
Barrel shaped proglottid
Dipylidium caninum
Whipworm
Diarrhea, rectal prolapse
Mebendazole
Trichuris trichiura
Ingestion of egg
IS: embryonated egg
Dx S: unembryonated egg
Pinworm, seatworm
MC soil transmitted helminth in developed countries/cosmopolitan worm
Pruritus ani, appendicits (oxyuriasis) , vulvovaginitis
Enterobius vermicularis
Ingestion of egg, inhalation of egg
IS: embryonated egg
Dx S: eggs in perianal folds (Graham’s scotch tape)
Pyrantel palmoate
Ground itch, larva currens, doudenitis, paradoxical asthma, hyperinfection syndrome
Strongyloides stercoralis
Larvae penetrate skin
IS: filariform larvae
Dx S: rhabditiform larvae (stool)–Harada Mori
Ivermectin
Puddock worm
Involves migratory bird
Borborygmus, protein losing enteropathy
Capillaria philippinensis
Undercooked fish
IS: larvae
Dx S: unembryonated egg (direct fecal smear, kato-katz : peanut shaped egg with flattened bipolar flags)
Albendazole
Most debilitating nematode infection
Tropical pulmonary eosinophilia (Meyers-Kouvenaar bodies)
Chyluria
Hydrocoele, elephantiasis
Wucheriria brancofti (hydrocoele) Brugia malayi (elephantiasis)
Mosquito bite
IS: 3rd stage larva
Dx S: microfilariae (thick blood smear, DEC provocation test)
Diethylcarbamazine
Nurse cell
Periorbital edema, hemorrhagic phenomena
Respiratory myositis
Trichinella spiralis
Undercooked pork
IS: encysted larvae
Dx S: encysted larvae (muscle biopsy)
River blindness, hanging groin, lizard skin, dermal nodules
Mazzoti reaction
Onchocerca volvulus
From female blackfly (semulium)
Ivermectin
Calabar swelling
Worm crawling across the conjunctiva
Loa loa
From deer fly and mango fly
Guinea fire worm
Live worm in skin ulcer
Drancunculus medinensis
Dog ascaris
Visceral larva migrans
Ocular larva migrans
Endophthalmitis
Toxocara canis
Cutaneous larva migrans
Ancyclostoma caninum, brasiliense
MCC of parasitic meningitis
Angiostrongylus cantonensis
Eosinophilic gastroenteritis
Anisakis simplex
