Amebic liver abscess commonly involves which liver lobe?

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Amebic liver abscess forms when Entamoeba histolytica reaches the liver via the portal venous system from an intestinal infection. The right lobe is the usual site because it receives the majority of portal blood flow and is larger, making it more likely to be seeded and to develop an abscess, especially in its posterior segments. The left lobe and smaller lobes—such as the caudate and quadrate—are involved less often due to receiving less portal inflow and different anatomical drainage. So, the right lobe is the most common location for an amebic liver abscess.