angioma an·gi·o·ma (ān'jē-ō'mə)
n. pl. an·gi·o·mas or an·gi·o·ma·ta (-mə-tə)
A tumor composed chiefly of lymphatic vessels or blood vessels.
hemangioma he·man·gi·o·ma (hĭ-mān'jē-ō'mə)
n. pl. he·man·gi·o·mas or he·man·gi·o·ma·ta (-mə-tə)
A congenital benign skin lesion consisting of dense, usually elevated masses of dilated blood vessels.