<unk>  is a condition of excessive proliferation of the<unk>  cells (inner lining of the uterus) associated with an increased gland to stroma ratio. The majority of cases of<unk>  result from high concentrations of estrogen combined with insufficient concentration of the progesterone-like hormones which normally counteract the proliferative effects of estrogen on the<unk>  tissue. Anovulation results in the prolonged release of estrogen and the relative lack of progesterone resulting in excessive stimulation of the endometrium. Unopposed estrogen stimulation may be either from an endogenous or exogenous source.<unk>  may be broadly classified based on histology into simple and complex types.<unk>  may also be classified based on the presence or absence of cellular atypia<unk>  with cellular atypia and<unk>  without cellular atypia).<unk>  must be differentiated from conditions that have similar ultrasound appearances such as normal thickening during the secretory phase, sessile<unk>  polyp, submucosal uterine fibroids,<unk>  cancer, adherent intrauterine blood clot,and pregnancy. Women of all age groups may develop<unk> . However,<unk>  is more common in postmenopausal women. The majority of cases of<unk> , except complex atypical<unk>  resolve spontaneously with time. If left untreated, 30% of patients with atypical<unk>  may progress to develop<unk>  carcinoma. Malignant transformation into<unk>  cancer is the most common complication of<unk> . Prognosis is generally good with treatment. Pelvic ultrasound on days 5 to 10 of menstrual cycle reduce the variability in<unk>  thickness and may be helpful in the diagnosis of<unk> . On pelvic ultrasound,<unk>  is characterized by a homogeneous increase in the<unk>  thickness in the majority of patients. However,<unk>  may also cause asymmetric or focal thickening with surface irregularity which should raise a suspicion for malignancy. Progesterone therapy is the preferred drug for the treatment of benign<unk> . The management of<unk>  depends upon the desire for future childbearing. Total hysterectomy is curative for atypical<unk>  or<unk>  intraepithelial neoplasia.
Endometrial hyperplasia
Uterine polyp
Adenomyosis
Enlarged uterus
Uterine fibroids
Cervical dysplasia
Dysfunctional uterine bleeding
Cervical polyp