This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Gynaecological Diagnosis, Subject name: Gynaecology & Obstetrics
[{'content': 'Fifteen years after menopause, the normal ovarian volume on ULTRASOUND should not measure more than_____? \nSelect and explain. \nA. 1 mL, B. 2 mL, C. 8 mL, D. 10 mL', 'role': 'user'}, {'content': "Answer: B \nExplanation: Ans. b (2 mL) (Ref. Shaw's textbook of Gynaecology 14th ed., p 53)ANATOMICAL CHANGES AFTER MENOPAUSE# The ovaries shrink and their surface become grooved and furrowed.# The tunica albuginea thickens.# The menopausal ovary measures < 2 x 1.5 x 1 cm in size (8 mL in volume) as seen on ultrasound.# Fifteen years later, it should not measure more than 2 mL.# The plain muscle in the fallopian tube undergoes atrophy, cilia disappears from tubal epithelium, and the tubal plicae are no longer prominent.# The uterus becomes smaller through atrophy of its plain muscle, so that the connective tissues are more conspicuous. The endometrium is represented by only basal layer.# The cervix becomes smaller and its vaginal portion is represented by a small prominence at the vaginal vault.# The vaginal fornices gradually disappear.", 'role': 'assistant'}]