Platyhelminthes Trematodes (flukes) & Cestodes (tapeworm) Quiz

1. Which parasite is associated with fever, chills, liver enlargement, abdominal pain, and portal vein hypertension after swimming in the Nile river in Egypt?

Taenia solium (pork tapeworm)

Plasmodium falciparum (malaria)

Schistosoma Mansoni (slide: granuloma around egg)
IH: Snail
Site: mesenteric venules
Must have a male and female worm present to produce eggs
Rupture of collateral veins due to portal HTN, transverse myelitis (eggs in spinal cord)

Entamoeba histolytica (amoebiasis)

Schistosoma Mansoni is the correct answer as it is related to the symptoms described and is commonly found in the Nile river. Plasmodium falciparum causes malaria, Taenia solium is responsible for pork tapeworm infection, and Entamoeba histolytica causes amoebiasis, none of which match the symptoms and scenario provided.

Explanation

Schistosoma Mansoni is the correct answer as it is related to the symptoms described and is commonly found in the Nile river. Plasmodium falciparum causes malaria, Taenia solium is responsible for pork tapeworm infection, and Entamoeba histolytica causes amoebiasis, none of which match the symptoms and scenario provided.

2. Pt is in China (Hong KONG?) and goes swimming in a lake. 5 weeks later she get fever, chills, dysentery, headache, cough, eosinophilia, lymphadenopathy and hepatosplenomegaly. You examine her feces and see eggs. Ten years later she had cerebritis and cor pulmole causing R-sided heart failure. Parasite? What is the name of the pts initial syndrome? What major complications are you worried about?

Schistosoma Japonicum
Initial syndromes: Katayama
Complications: Right heart failure (due to cor pulmole), cerebritis

Ascaris lumbricoides

Trichinella spiralis

Hookworm infection

3. Pt in sub-Saharan Africa with hematuria, dysuria and calcification obstruction her bladder. She often washed clothes in the river. You do a fecal smear that shows the lancet egg below. To confirm you do and ultrasound. Which parasite is causing this infection?

Plasmodium falciparum

Schistosoma Haematobium
More of this infection that the other two schistosomes combine (all in Africa)
Complications: Squamous cell carcinoma of the bladder, UTI, renal failure

Escherichia coli

Trichomonas vaginalis

The correct parasite causing this infection is Schistosoma Haematobium, commonly found in sub-Saharan Africa. Complications of this infection include squamous cell carcinoma of the bladder, UTI, and renal failure.

Explanation

The correct parasite causing this infection is Schistosoma Haematobium, commonly found in sub-Saharan Africa. Complications of this infection include squamous cell carcinoma of the bladder, UTI, and renal failure.

4. What is the fluke causing TB-like pulmonary infiltrates in a patient in China after eating crab/crayfish?

Paragonimus (lung fluke)

China's cray Crab will create para TB lung symptoms

Fasciola (liver fluke)

Schistosoma (blood fluke)

Clonorchis (liver fluke)

The correct answer is Paragonimus (lung fluke) because it is known to cause symptoms like chest pain, hemoptysis, cough, and TB-like pulmonary infiltrates in individuals who consume infected raw or undercooked freshwater crabs and crayfish in certain regions, including China.

Explanation

The correct answer is Paragonimus (lung fluke) because it is known to cause symptoms like chest pain, hemoptysis, cough, and TB-like pulmonary infiltrates in individuals who consume infected raw or undercooked freshwater crabs and crayfish in certain regions, including China.