these studies have led them to think that the foci of endometriosis , whether they are internal or external , come from cells of coelomic mesothelium that persists in the transitional zone between the myometrium and the endometrium of the uterus , or in the mesothelium that covers the ovary , the tube and the pelvis under the stimulus of substances that are present in degenerate endometrial tissues during menstruation .
C0225335
cells
C0086610
mesothelium