Picture Diagnosis
CT scan with a mass, round with well defined borders. Note: thick-walled cavity with low attenuation center and contrast-enhanced periphery
Answer: Amebic liver abscess
Amebic liver abscess is the most frequent extraintestinal manifestation of Entamoeba histolytica infection. This infection is caused by the protozoa E histolytica, which ascends the portal venous system. Amebic liver abscess is an important cause of space-occupying lesions of the liver, mainly in developing countries
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