Schistosomes

Summary of Schistosomes
A genus of trematodes, Schistosoma, commonly known as blood-flukes, are parasitic flatworms responsible for a highly significant group of infections in humans termed schistosomiasis. Schistosomiasis is considered by the World Health Organization as the second most socioeconomically devastating parasitic disease, (after malaria), with hundreds of millions infected worldwide. Adult flatworms parasitize blood capillaries of either the mesenteries or plexus of the bladder. The intermediate host is the snail. 

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Schistosomes

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Schistosomes

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Schistosoma haematobium is most common trematodal infection in the (part of the world) and causes bladder carcinoma.

Questions

USMLE® Step 1 style questions USMLE

2 questions

USMLE® Step 2 style questions USMLE

3 questions
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A 35-year-old man comes to clinic because of hematuria for the past week. He says red streaks of blood appear during the last 2 seconds of urination. Past medical history is noncontributory. He does not take any medications and denies alcohol, tobacco, or illicit drug use. His spouse mentions that he went on a trip to North Africa 8 months ago and since then he has had diarrhea about 3 days per week. His temperature is 37.2° C (99° F), pulse is 77/min, respirations are 16/min, and blood pressure is 130/70 mm Hg. A bladder biopsy shows pink, polygonal cells with hyperchromatic nuclei having intermediate filament. Which of the following mechanisms of treatment would have most likely prevented this exacerbation of his condition?

External References