Also known much more succinctly as adenomyosis (pronounced ad-den-o-mi-o- sis), this is a typical benign condition associated with the womb when the endometrium (the mucous membrane layer lining the interior of uterus) grows in to the myometrium (the uterine musculature positioned only beyond your endometrium) The endometrium and myometrium under regular conditions live right beside one another as discrete next-door neighbors. In adenomyosis, the endometrium invades the myometrium. The myometrium may react to this intrusion with muscular overgrowth. If an island of endometrial tissue is contained and circumscribed inside the myometrium, it types a nodule labeled as an adenomyoma (plural: adenomyomata). Adenomyosis is made up of adeno (gland) + myo (muscle tissue) +osis (a disorder of) = a condition of glandular muscle (talking about the endometrium) when you look at the muscle tissue (the myometrium). Adenomyosis passes various other names including endometriosis interna or uterina, and adenomyometritis.