Sketchy: Trematodes

Question 1

What is the intermediate host of Schistosoma?

Answer 1

snails

Question 2

What s/s of Schistosoma is common across all 3 types?

Answer 2

swimmer’s itch

Question 3

Where do Schistosoma mature into adults within the human body?

Answer 3

in the liver

Question 4

Cue:

• orca with snails and seagulls with rope hanging off his leg that a crab grabbed onto

Answer 4

• orca = Clonorchis sinensis
• snails = intermediate host
• seagull = gallstones
• rope = biliary fibrosis
• crab = cholangiocarcinoma

Question 5

Schistosoma have free-living _____ that penetrate the skin, usually in an aquatic environment.

Answer 5

circariai

Question 6

Large lateral spine

Answer 6

Schistosoma mansoni

Question 7

Who is at risk for Schistosoma?

Answer 7

swimmers

Question 8

What is the Chinese Liver Fluke?

Answer 8

Clonorchis sinensis

Question 9

What are the s/s of Schistosoma haematobium?

Answer 9

• hematuria
• bladder CA

Question 10

Cue:

• black rocks with a seagull resting on top

Answer 10

• seagull = gallstones
• black rocks = pigmented stones

Question 11

Cue:

• penguins with bloody lung spots eating crab legs and pretzels

Answer 11

• penguins = Pargonimus westermani
• causes chronic cough w/ bloody sputum
• crab legs = transmission = eating larvae from raw/undercooked crab meat
• pretzel = praziquantel (tx)

Question 12

What is the tx for Clonorchis sinensis?

Answer 12

praziquantel

Question 13

Where does Schistosoma haematobium reside within the human body?

Answer 13

in the veins in the bladder

Question 14

How is Pargonimus westermani transmitted?

Answer 14

consumption of raw or undercooked crab meat

Question 15

What is the tx for Pargonimus westermani?

Answer 15

praziquantel

Question 16

How is Clonorchis sinensis transmitted?

Answer 16

eating cysts and larvae from uncooked fish

Question 17

What does Pargonimus westermani cause?

Answer 17

chronic cough w/ bloody sputum

Question 18

What are the 3 types of Schistosoma?

Answer 18

1. mansoni
2. japonicum
3. haematobium

Question 19

What is the tx for Schistosoma?

Answer 19

praziquantel

Question 20

How is Pargonimus westermani diagnosed?

Answer 20

operculated eggs on stool O&P

Question 21

What does Clonorchis sinensis cause?

Answer 21

• biliary tract fibrosis
• pigmented gallstones
• cholangeocarcinoma

Question 22

What is the tx for all trematodes?

Answer 22

praziquantel

Question 23

Why is it important to treat Schistosoma ASAP?

Answer 23

bc it can progress to CA

Question 24

Cue:

• pretzel

Answer 24

Praziquantel (tx)

Question 25

Cue:

• eggs in the water with little pigmented tops

Answer 25

• operculated eggs on stool O&P = Clonorchis sinensis

Question 26

What s/s of Schistosoma is common to mansoni and japonicum?

Answer 26

portal HTN –> GI hemorrhage, ab pain –> cirrhosis, liver failure

Question 27

Cue:

• port hole with blue fish swimming towards the coral and two red fish swimming the other direction- one with a large lateral spine in front of a man statue, and the other in front of Japanese tourists with a small spine

Answer 27

• port hole = portal circulation
• blue fish = portal blood stream (venous blood)
• red fish in front of man statue = Schistosoma mansoni
• red fish in front of Japanese = Schistosoma japonicum
• *** swimming other way = upstream migration

Question 28

How is Schistosoma diagnosed?

Answer 28

stool O&P

Question 29

large terminal spine

Answer 29

Schistosoma haematobium

Question 30

Cue:

• red swordfish piercing a jellyfish and a crab

Answer 30

• Schistosoma haematobium = large terminal spine
• jellyfish = bladder (hematuria)
• crab = cancer

Question 31

What is the intermediate host for all trematodes?

Answer 31

snails