The CT scan demonstrates:
- large lobulated hypodense collection air-fluid level in the right hepatic lobe centred on the segments 7 and 8 with double target sign (the inner ring of abscess membrane shows early contrast enhancement and outer hypodense rim of parenchymal oedema which only enhances on delayed phase)
- extensive linear branching gas within the liver most prominent in the left lobe and common bile duct (CBD) which is dilated with air-fluid in its distal portion. No distal CBD stone seen
- thrombosis of the right hepatic vein