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Liver was of normal size and echogenicity. A 2 cm low echogenicity lesion with irregular margins is seen in segment 6 of the liver. Appearance is non-specific but a metastatic deposit is in the differential diagnosis.
Abdominal CT is not available for direct correlation. It is not seen on the arterial phase liver images of the chest CT.
Intrahepatic biliary ducts are of normal calibre. However there was ring down artefact from a number of ducts. This is not due to gas. Small calculi are another possibility but appearance is otherwise non-specific for biliary pathology. Extrahepatic biliary ducts are of normal calibre with the common hepatic duct measuring 4 mm in diameter.
Gallbladder was mildly thickwalled consistent with chronic cholecystitis. It contained a single large calculus measuring 3.5 cm in diameter. The gallbladder wall was not calcified and there was no focal gallbladder mass although a small mass could be obscured by the large calculus.
Main portal vein that measured 8 mm in diameter.
Flow direction the main portal vein was normal.
No collateral vessels identified and no free intraperitoneal fluid.
Biliary ducts were of normal calibre with the common hepatic duct measuring gap 2 in diameter.
Pancreas was normal in appearance.
Right kidney measured approximately 9 cm and left kidney 10.5 cm in length. No focal renal lesion or hydronephrosis. Spleen measured 4.5 cm in coronal length.
Abdominal aorta measured up to 1.5 centimetres in transverse diameter.
Conclusion: Large gallstone within the gallbladder. Single 2 cm low echogenicity lesion in segment 6 of the liver. Suggest correlation with the recent abdominal CT.