Trematodes-San Franschisto Ocean Park Flashcards
What are the three types of trematodes, aka flukes
- Schisotsoma
- Clonorchis sinensis
- Parogonimus westermonti
What are Schisotsoma normally found
Free living aquatic environments and snails are the reservoir
What is the mechanism of transmission for Schisotsoma
Enter through the skin and enter the blood vessels, and then travel to the liver
What is the path of getting ot the target organ for Schisotsoma
Travels to the liver against the portal flow
What are the characteristics of the Schisotsoma mansoni eggs
Large lateral spine on the side
What are the characteristics of the Schisotsoma japonicum eggs
Small or absent spines
What are the characteristics of the Schisotsoma haematobium eggs
Large terminal spine
What are the clinal symptoms seen in Schisotsoma mansoni and japonicum
Swimmers itch in skin
Portal hypertension leading to GI distention and abdominal pain
Liver cirrhosis and jaundice
What is the target organ of Schisotsoma haematobium
Bladder veins
What are the clinical presentations of Schisotsoma haematobium
Hematuria in bladder
What is Schisotsoma haematobium associated with a higher risk for
Bladder cancer
What is the treatment for all trematodes
Praziquantal
What is the target location for Clonorchis sinensis
Gallbladder and biliary tract
What are the clinical presentations of Clonorchis sinensis
Biliary fibrosis
Cholangiocarcinoma
Pigmented gallstones
What is the diagnostic tool used for Clonorchis sinensis
Operculated eggs in stool O and P (looks like the eggs have yamicas)
What conditions is assoaciteed with a higher risk in Clonorchis sinensis
Cholangiocarcinoma
What is the target organ for Parogonimus westermonti
Lungs
What are the clinical presentations of Parogonimus westermonti
Chronic cough with bloody sputum
What is the diagnostic feature of Parogonimus westermonti
Opertulated eggs in stool O and P (eggs have a little yamica)
