Entamoeba histolytica (Amebiasis)

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Entamoeba histolytica (Amebiasis)

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

Entamoeba histolytica (Amebiasis)

Flashcards

0 / 9 complete

USMLE® Step 1 questions

0 / 2 complete

High Yield Notes

6 pages

Flashcards

Entamoeba histolytica (Amebiasis)

of complete

Questions

USMLE® Step 1 style questions USMLE

of complete

A 19-year-old man presents to a rural clinic in Bangladesh for evaluation of abdominal pain that has been ongoing for the past month. The pain is intermittent and most prominent in the right upper quadrant. In addition, he has often noticed bright-red blood in his stool. The patient consumes alcohol and tobacco and has been sexually active with three female partners over the past year. Temperature is 37.7°C (100°F), blood pressure is 101/72 mmHg, and pulse is 78/min. Physical examination reveals right upper quadrant pain elicited by deep palpation. CT imaging is shown below. Via which of the following routes did this patient most likely acquire the infection?
 
Image reproduced from Radiopedia  

External References

First Aid

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Dysentery

Entamoeba histolytica p. , 176

Entamoeba histolytica

amebiasis p. 152

bloody diarrhea p. 176

metronidazole p. 192

External Links

Summary

Amebiasis is a parasitic infection caused by the protozoan parasite Entamoeba histolytica. Most cases of amebiasis occur in developing countries, where access to clean water and proper sanitation is limited. However, the condition can also be seen in developed countries among travelers who have visited areas where amebiasis is endemic. Symptoms of amebiasis can include diarrhea, abdominal pain, fever, and rectal bleeding. If left untreated, the infection can progress to involve the liver (amebic hepatitis) or the brain (amebic meningoencephalitis).

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