[Cavernous hemangioma of the liver associated with angiosarcoma: malignant transformation?].

Angiosarcoma of the liver is a rare tumor. Its treatment is usually regarded as unsuccessful and its prognosis extremely poor. The authors report the case of a solitary and encapsulated hepatic tumor characterized by the association of a cavernous hemangioma surrounded by an angiosarcoma. The hypothesis of an eventual malignant transformation of cavernous hemangiomas of the liver is raised.