Snapshot A 35-year-old woman presents to her gynecologist for irregular periods and frequent spotting. She has been trying to get pregnant for 1.5 years now and realized that having irregular periods may mean something is wrong. She has never been pregnant before. She denies any history of STIs. She undergoes a transvaginal ultrasound, which reveals several small masses in the uterine cavity. Overview Introduction Benign collection of endometrial tissue in the uterine wall that extend into the uterine cavity Also known as uterine polyps Ranges from a few millimeters to several centimeters in diameter Pathogenesis login to view 1 more bullet Epidemiology login to view 1 more bullet Risk factors login to view 3 more bullets Presentation Symptoms login to view 5 more bullets Evaluation Transvaginal ultrasound Hysteroscopy Endometrial biopsy to confirm login to view 2 more bullets Differential Diagnosis Uterine fibroids Endometrial carcinoma Endometrial hyperplasia Treatment If not suspicious for cancer, observation with good follow-up Surgical removal login to view 1 more bullet Prognosis, Prevention, and Complications Prognosis login to view 2 more bullets Complications login to view 1 more bullet