Cestodes (Flatworms)

Question 1

Praziquantel is the DOC for all cestodes except:

Answer 1

E. granulosus (albendazole)

Question 2

Undercooked pork, few gravid proglottids, can cross the BBB and cause seizures or enter vitreous humor

Answer 2

Taenia solium

causes neurocysticercosis

Question 3

Undercooked beef, many gravid proglottids, cause abdominal pain, weight loss, pruritus ani and intestinal obstruction

Answer 3

Taenia saginata

Question 4

Plerocercoid larvae in undercooked fish, causes abdominal pain, diarrhea, and megaloblastic anemia due to Vit B12 deficiency

Answer 4

Diphyllobothrium latum

Question 5

Composed of hydatid cysts with protoscolices that cause space occupying symptoms in the liver, lungs or brain; rupture can cause life-threatening anaphylaxis

Answer 5

Echinococcus granulosus

Question 6

Multiloculated cysts with honeycomb vesicles; from rodents and foxes

Answer 6

Echinococcus multilocularis

Question 7

Dwarf tapeworm; with polar filaments and six-hooked larva; most common tapeworm in developed countries

Answer 7

Hymenolepsis nana

Question 8

Rat tapeworm

Answer 8

Hymenolepsis diminuta

Question 9

Most common tapeworm of dogs and cats

Answer 9

Dipylidium caninum