Adenomyosis is endometrial tissue within the myometrium. It can be asymptomatic or bring blood, pain, or dyspereunia. There is an enlarged uterus. This is seen with endometrial glands in the myometrium.
Endometriosis is endometrial tissue in an abnormal location. There is cyclicl dysmenorrhea, dyschesia, dyspereunia, and bowel symptoms. There is "chocolate cyst of ovary". This is located in specific areas and the cysts are filled with brown fluid, endometrial glands, endometrial stroma, and hemosiderin.