Six infants with either cavernous hemangiomas or hemangioendotheliomas of the liver are described. Typical clinical features include cardiac failure, hepatomegaly, and cutaneous hamangiomas. Prompt recognition will direct management to prevent lethal complications of cardiac failure, hyperconsumptive coagulopathy, and hepatic rupture. Dynamic and static hepatic scintigraphy will demonstrate the vascularity and size of the liver mass and provide distinction from other tumors, although in certain circumstances angiography is required.