The epoophoron (parovarium) is a conglomerate of remnant tubules which lie in the lateral portion of the mesosalpinx among the peritoneal layers of the uterus broad ligament, between the Fallopian tube and the ovary.
The epoophoron consists of a fine network of tortuous, transverse tubules and longitudinal ducts. The tubules are blind and have no function as they are vestiges of the caudal part of the mesonephros (excretory organ), extending from the hilum of the ovary to the Fallopian tube. They open into the duct of the epoophoron, which is a remnant of the mesonephric duct.
Below, schematic picture of female reproductive organs, exhibiting the epoophoron, which is also called parovarium.
