Hepatocellular carcinoma with ring calcification mimicking hydatid disease: a case report. Dynamic CT. a A calcified tumor was seen in segment 6 of the liver in the plain CT. b CT in the arterial phase showing partial early enhancement of the tumor (indicated by white arrows). c CT in the delayed phase showing a washed-out pattern in the tumor Hepatocellular
carcinoma with ring calcification mimicking hydatid disease: a case report. Dynamic CT. a A calcified tumor was seen in segment 6 of the liver in the plain CT. b CT in the arterial phase showing partial early enhancement of the tumor (indicated by white arrows). c CT in the delayed phase showing a washed-out pattern in the tumor