Hepatic cavernous hemangiomas: long-term (> 5 years) follow-up changes on contrast-enhanced dynamic computed tomography or magnetic resonance imaging and determinant factors of the size change.

During the long-term (5-13 years) follow-up, about 50% of the hepatic hemangiomas were enlarged or shrunken to > 20% of the initial diameter. Aside from the cirrhosis and aging factors, the size changes seemed sporadic.