Amoebic liver abscess ultrasound

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Yamuna Kondapally, M.B.B.S [2]

Overview

Ultrasound is the gold standard technique for the diagnosis of amoebic liver abscess. The ultrasound findings include:^[1]

Intrahepatic findings

Homogenous hypoechoic areas that can be single or multiple with round edges
Round or oval in shape and variable size (around 2-6 cm in diameter)
An incomplete rim of edema
Location near liver capsule
Margin of abscess tends to be nodular in around 40% of cases and smooth in 60% of cases
Internal septations may be present in 30% of cases
Focal intrahepatic biliary dilatation peripheral to an abscess may be present

Extrahepatic findings