This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Unknown
[{'content': 'Adenomyosis is: \nSelect and explain. \nA. Endometriosis interna, B. Endometriosis externa, C. Uterine sarcoma, D. Leiomyoma', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Ans: a (Endometriosis internal) Ref: Shaw, 13th ed, p. 448; Robbins, 7th ed, p. 1083Adenomyosis (uterine endometriosis) is also called endometriosis interna.Commonest symptom of adenomyosis - MenorrhagiaCommonest symptom of endometriosis - DysmenorrhoeaPelvic examinationUterus symmetrically enlarged- SoftSize not more than 14 weeksInvestigation- USGHysteroscopy + curettageTreatment of choiceTotal hysterectomy (No role of hormone therapy)', 'role': 'assistant'}]