myxoma /miksō″mə/ [Gk, myxa + oma, tumor] , a neoplasm of the connective tissue, characteristically composed of stellate cells in a loose mucoid matrix crossed by delicate reticulum fibers. These tumors may grow to enormous size and may occur under the skin but are also found in bones, the genitourinary tract, and the retroperitoneal area. −myxomatous, adj.
