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Adenomyosis (pronounced A - den - oh - my - oh - sis) is a medical condition characterized by the presence of ectopic glandular tissue found in muscle. The term ''adenomyosis'' is derived from the Greek terms ''adeno-'' (meaning ''gland''), ''myo-'' (meaning ''muscle''), and ''-osis'' (meaning ''condition''). Previously named as ''endometriosis interna'', adenomyosis differs from endometriosis and these two diseases are found together in 10% of the cases. It usually refers to ectopic endometrial tissue (the inner lining of the uterus) within the myometrium (the thick, muscular layer of the uterus). The term "adenomyometritis" specifically implies involvement of the uterus. The condition is typically found in women between the ages of 35 and 50. Patients with adenomyosis can have painful and/or profuse menses (dysmenorrhea & menorrhagia, respectively). However, because the endometrial glands can be trapped in the myometrium, it is possible to have increased pain without increased blood. (This can be used to distinguish adenomyosis from endometrial hyperplasia; in the latter condition, increased bleeding is more common.) In adenomyosis, ''basal'' endometrium penetrates into hyperplastic myometrial fibers. Therefore, unlike functional layer, basal layer does not undergo typical cyclic changes with menstrual cycle.〔 Adenomyosis may involve the uterus focally, creating an adenomyoma. With diffuse involvement, the uterus becomes bulky and heavier. ==Signs and symptoms== Some women with adenomyosis do not experience any symptoms, while others may have severe, debilitating symptoms. The endometrial implants that grow into the wall of the uterus bleed during menstruation (the same as endometrial tissue bleeds) and are discharged vaginally as menstrual bleeding. The vaginal pressure can be severe enough to feel like the uterus is trying to push out through the vagina, like the first stage of labor when the baby's head pushes into the cervix. Other symptoms include; * Intense debilitating pain all the time and/or * Acute & increasing pain at menstruation and ovulation * Strong 'contraction' feel of uterus * Abdominal cramps * A 'bearing' down feeling * Pressure on bladder * Dragging sensation down thighs and legs * Heavy bleeding and flooding * Large blood clots * Prolonged bleeding i.e.; up to 8–14 days 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「adenomyosis」の詳細全文を読む スポンサード リンク
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