myxoma

A benign tumor, most often found in the heart, composed of connective tissue embedded in mucus.

A tumor consisting of mucous tissue — that is, a tissue with round, fusiform, or stellate cells in a transparent, semifluid, intercellular substance containing a large amount of mucin. Also called collonema.

A tumor made up of a gelatinous tissue resembling that found in the umbilical cord.

A tumor of primitive connective tissue.

a benign tumor of connective tissue containing jellylike material