Liver abscess

Case contributed by Dr Mostafa El-Feky


Right upper quadrant pain and fever.

Patient Data

Age: 50 years
Gender: Female

Triphasic liver CT

A large irregular fluid-density lesion involving the dome (segment VIII) and segment V of the right hepatic lobe as well as segment IV of the left lobe showing rim enhancement (inner rim) and a thin outer ring of hypoattenuation ("double target sign"). There are multiple smaller peripheral lesions, mostly noted at segment VIII with similar characteristics. Some of these appear coalescent forming "cluster sign". The remainder liver parenchyma is unremarkable. Portal vein and hepatic veins are patent.

The common bile duct is patent along its entire course with pneumobilia extending to intrahepatic biliary ducts surrounding the lesion.

Case Discussion

This case represents the typical features of a liver abscess with cluster sign and double target sign. Gas within the biliary tree (pneumobilia) can be associated with liver abscesses. 

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Case information

rID: 54564
Published: 30th Jul 2017
Last edited: 14th Aug 2019
Inclusion in quiz mode: Included

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