angioma /an′jē·ō″mə/ pl. angiomas, angiomata [Gk, angeion, vessel + oma, tumor] , any benign tumor with blood vessels (hemangioma) or lymph vessels (lymphangioma). Most angiomas are congenital; some, such as cavernous hemangiomas, may disappear spontaneously. Compare angiosarcoma.
