DefinitionA hepatic hemangioma is a noncancerous liver tumor made of widened (dilated) blood vessels.Alternative NamesLiver hemangioma; Hemangioma of the liver; Cavernous hepatic hemangioma; Infantile hemangioendothelioma; Multinodular hepatic hemangiomatosisCauses, incidence, and risk factorsA hepatic hemangioma is the most common noncancerous tumor of the liver. It is believed to be a birth defect.Hepatic hemangiomas can occur at any time, but are most common in people in their 30s - 50s. Women are affected more often than men, and usually have bigger tumors than men.Babies may develop a type of hepatic hemangioma called benign infantile hemangioendothelioma (also called multinodular hepatic hemangiomatosis). This rare, noncancerous tumor has been linked to high rates of heart failure an