Cestodes

Question 1

name the 3 cestodes (tapeworms)

Answer 1

• Taenia solium
• Diphyllobothrium latum
• Echinococcus granulosus

Question 2

Taenia solium–disease

Answer 2

• Intestinal Tapeworm
• Cysticerosis, Neurocysticercosis (B)

Question 3

Taenia solium–transmission of intestinal tapeworm

Answer 3

• ingestion of larvae encysted in undercooked pork

Question 4

Taenia solium–transmission of Cysticercosis, Neurocysticercosis

Answer 4

• ingestion of eggs contaminated with human feces

Question 5

Taenia solium–treatment of intestinal tapeworm

Answer 5

• praziquantel

Question 6

Taenia solium–treatment of cysticerosis, neurocysticercosis

Answer 6

• praziquantel
• albendazole for neurocysticercosis

Question 7

Diphyllobothrium latum–disease

Answer 7

• vitamin B12 deficiency
  
  • tapeworm competes for B12 in intestine –> megaloblastic anemia

Question 8

Diphyllobothrium latum–transmission

Answer 8

• ingestion of larvae from raw freshwater fish

Question 9

Diphyllobothrium latum–treatment

Answer 9

• praziquantel

Question 10

Echinococcus granulosus (C)–disease

Answer 10

• hydatid cysts (D) in liver (E)
  
  • causing anaphylaxis if antigens released
    
    • hydatid cyst injected with ethanol or hypertonic saline to kill daughter cysts before removal

Question 11

Echinococcus granulosus–transmission

Answer 11

• ingestion of eggs from dog feces
• sheep are an intermediate host

Question 12

Echinococcus granulosus–treatment

Answer 12

• albendazole