Case 1

Epicrisis: Liver abscess in a 54 y male patient with immunosuppression (kidney transplantation) and bile duct stenosis. On presentation the patient was septic. Ultrasound shows a 3.5 cm anechoic lesion with some inner echogenic structures. After contrast injection the typical thin hypercontrasted margin can be seen in the arterial phase.

Case 2

Epicrisis: 35-year-old patient after respiratory infection with pleural effusion and pneumonia. CT-graphically, a liver lesion was found, with a suspicion of liver abscess. In CEUS the liquid parts are non-enhancing, the abscess capsule shows arterial hyperenhancement.

Case 3

Epicrisis: 69-year-old patient with past resection of a cholangiocellular carcinoma and postoperative abscess. Ultrasound shows an encapsulated liquid mass in segment VII. CEUS shows arterial  hyperemia in the surrounding liver tissue. In the portal venous and late phase demarcation of the liquid parts without enhancement.