Adenomyosis

The presence of functional endometrial tissue within the myometrium of the uterus

Aetiology

  • Thought to occur when the endometrium is allowed to communicate with the underlying myometrium after uterine damage; such interaction may occur in association with:
    • Pregnancy and childbirth
    • Caesarean section
    • Uterine surgery (e.g endometrial curettage)
    • Surgical management of miscarriage or termination of pregnancy

Clinical presentation

Symptoms

  • Menorrhagia
  • Dysmenorrhoea
  • Deep dyspareunia
  • Irregular bleeding

Signs

  • Symmetrically enlarged tender uterus

Investigations

  • Definitive diagnosis is through biopsy after hysterectomy
  • Imaging can assist diagnosis - transvaginal US, MRI

Management

  • Hysterectomy is the only curative therapy
  • Other more conservative approaches may give symptom control:
    • Combined oral contraceptives
    • Progestogens (oral or intrauterine system e.g. Mirena)
    • GnRH analogues
    • Aromatase inhibitors
  • Uterine artery embolisation can be used as an alternative treatment option in the short and medium term for women who wish to avoid hysterectomy/preserve their fertility