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A patient presents with severe bloody diarrhea for the last three days and right upper quadrant pain. Stool analysis reveals cysts with 4 nuclei. This patient is most likely infected with which of the following?
Correct Answer: C. Entamoeba histolytica
The symptoms are a classical presentation of Entamoeba histolytica infection: bloody diarrhea (dysentery) and right upper quadrant pain.
This amoeba can frequently cause liver abscesses, and can be diagnosed by observing 4-nucleated cysts in the stool. Ingested RBCs inside the amoebas and flask-shaped ulcerations in the mucosa/submucosa can also be used for diagnosis.The other parasites listed typically do not cause bloody diarrhea.
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Category: MicrobiologyA patient presents with severe bloody diarrhea for the last three days and right upper quadrant pain. Stool analysis reveals cysts with 4 nuclei. This patient is most likely infected with which of the following?
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