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Schistosomes
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Microbiology

Parasitology

Protozoa
Plasmodium species (Malaria)
Babesia
Giardia lamblia
Entamoeba histolytica (Amebiasis)
Cryptosporidium
Acanthamoeba
Naegleria fowleri (Primary amebic meningoencephalitis)
Toxoplasma gondii (Toxoplasmosis)
Trypanosoma brucei
Trypanosoma cruzi (Chagas disease)
Trichomonas vaginalis
Leishmania
Worms
Loa loa (Eye worm)
Toxocara canis (Visceral larva migrans)
Onchocerca volvulus (River blindness)
Ascaris lumbricoides
Anisakis
Angiostrongylus (Eosinophilic meningitis)
Ancylostoma duodenale and Necator americanus
Strongyloides stercoralis
Guinea worm (Dracunculiasis)
Wuchereria bancrofti (Lymphatic filariasis)
Trichinella spiralis
Enterobius vermicularis (Pinworm)
Trichuris trichiura (Whipworm)
Echinococcus granulosus (Hydatid disease)
Diphyllobothrium latum
Paragonimus westermani
Clonorchis sinensis
Schistosomes
Ectoparasites
Pediculus humanus and Phthirus pubis (Lice)
Sarcoptes scabiei (Scabies)

Assessments
Schistosomes

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High Yield Notes
6 pages
Flashcards

Schistosomes

12 flashcards
Questions

USMLE® Step 1 style questions USMLE

1 questions
Preview

A 20-year-old man comes to the clinic due to burning urination for the past 3 weeks. The patient recently returned from a trip to Egypt, where he hiked and swam in freshwater. During that time, the patient developed an itchy rash over some parts of the body, which self-resolved after a few days. Medical history is unremarkable besides a gonorrhea infection 3 years ago, which was successfully treated with antibiotics. Vital signs are within normal limits. Physical examination shows no abnormalities. Complete blood count shows:  
 

 Laboratory value  Result 
 Hemoglobin  12 g/dL 
 Hematocrit  40% 
 Leukocyte count  12,100/mm3 
 Platelet count  400,000/mm3 
 Leukocyte count  16000/mm3 
 Neutrophils, segmented  54% 
 Neutrophils, banded  5% 
 Eosinophils  12% 
 Basophils  0% 
 Lymphocytes  25% 
 Monocytes  7% 
Urine sample is obtained and the specimen under light microscopy is shown below:    


Reproduced from: Wikimedia Commons  
If left untreated, this patient is most likely to develop which of the following complications?  

Memory Anchors and Partner Content
Schistosoma
Picmonic
Trematodes
Sketchy Medical
External References
Summary
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.