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pl. myxomas or myxomata [″ + oma, tumor]
Tumor composed of mucous connective tissue similar to that present in the embryo or umbilical cord. Cells are stellate or spindle-shaped and separated by mucoid tissue. The tumors are usually soft, gray, lobulated, and translucent and are not completely encapsulated. Myxomas may be pure or of mixed types involving other types of tissue.