This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Endometriosis and dysmenorrhea, Subject name: Gynaecology & Obstetrics
The condition listed below that would most likely pursue a benign course is 
Select and explain. 
A. Vaginal adenosis, B. Adenomyosis, C. Extramammary Paget's disease, D. Endometrial hyperplasia
B: Adenomyosis
Answer: B: Adenomyosis 
Explanation: Adenomyosis is the presence of benign glands and stroma within the myometrium. It is a common cause of diffuse uterine enlargement and menstrual irregularities; however, it is not a precancerous lesion. Ref: Shaw&;s Textbook of Gynaecology; 16th edition; Chapter 30; Endometriosis and Adenomyosis