We report a case of hepatic angiosarcoma that is usually difficult to diffe
rentiate from cavernous hemangioma on computed tomography. The present case
suggests that early central enhancement and arterioportal shunting on dyna
mic computed tomography might be helpful for distinguishing hepatic angiosa
rcoma with a solid growth pattern from benign vascular neoplasms of the liv
er such as cavernous hemangioma.