The document discusses adenomyosis, a benign condition where endometrial tissue grows within the uterine wall. It defines adenomyosis and describes associated symptoms like pelvic pain and abnormal bleeding. Diagnosis can only be confirmed by pathology after hysterectomy, though other imaging methods like ultrasound and MRI can provide clues. TVUS shows heterogeneous myometrial texture while MRI may detect increased thickness or consistency changes in the myometrium.