Los tumores müllerianos mixtos son neoplasias cuyo origen son las células estromales primitivas que originariamente derivan del mesodermo mülleriano. Reciben el nombre de mixtos porque están constituidos por elementos glandulares malignos y estromales sarcomatosos.
Müllerian mixed tumours are neoplasms whose origins are primitive stromal cells, which are originally derived from the Mullerian mesoderm. They are called mixed because they are formed by malignant glandular elements and stromal sarcomatoses.