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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.
lymphangioma lym·phan·gi·o·ma (lĭm-fān'jē-ō'mə)
A benign tumorlike mass of lymphatic vessels or channels that vary in size, are frequently greatly dilated, and are lined with normal endothelial cells.