<n0:ComplexDefinition xmlns:n0="http://ncicb.nci.nih.gov/xml/owl/EVS/ComplexProperties.xsd#"><n0:def-definition>A non-neoplastic disorder characterized by the growth of endometrial tissue in the ovaries. It results in the development of blood filled ovarian cysts (chocolate cysts), and creation of scars and adhesions.</n0:def-definition><n0:def-source>NCI</n0:def-source></n0:ComplexDefinition>