system
Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
A 41-year-old nulliparous woman comes to the physician for an annual pelvic examination and Pap smear. Over the past year she has been feeling healthy. She is sexually active and uses an intrauterine device with copper for contraception. She has smoked one pack of cigarettes daily for 20 years. She is 160 cm (5 ft 3 in) tall and weighs 88 kg (194 lb); BMI is 34.4 kg/m2. Bimanual pelvic examination shows an irregularly enlarged uterus. A transvaginal ultrasound reveals a singular 4 cm, hypoechoic mass inside the myometrial wall. Which of the following is the most likely cause of this finding?
assistant
Leiomyoma