This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Endometriosis & H, Subject name: Gynaecology & Obstetrics
[{'content': "The lesion listed below that would most likely pursue a benign course is :- \nSelect and explain. \nA. Vaginal adenosis, B. Adenomyosis, C. Extramammary Paget's disease, D. Endometrial hyperplasia", 'role': 'user'}, {'content': "Answer: B \nExplanation: Adenomyosis is a benign condition characterised by the presence of benign endometrial glands and stroma within the myometrium, Common cause of diffuse uterine enlargement and menstrual irregularities. Vaginal adenosis is a DES-related precursor lesion for clear cell adenocarcinoma. Extrammary paget's disease is an intraepithelial adenocarcinoma. Endometrial hyperplasia is a precursor lesion of endometrial carcinoma.", 'role': 'assistant'}]