Hepatic Kaposi sarcoma in AIDS: US and CT findings

Abdominal ultrasonography (US) and computed tomography (CT) were performed in two patients with acquired immunodeficiency syndrome (AIDS) and necropsy-proved hepatic Kaposi sarcoma. At US, small (5-12-mm) hyperechoic nodules and dense periportal bands were seen in the liver. These lesions appeared hypoattenuated on baseline and dynamic CT scans and enhanced on delayed scans after a bolus injection of contrast material. Although nonspecific, these features strongly suggest tumor involvement in the liver in patients with AIDS and Kaposi sarcoma.