This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Urology, Subject name: Surgery
[{'content': 'A 70-year-old gentleman underwent TURP. Prostate specimen showed malignant histology. What is the next step? \nSelect and explain. \nA. Radical Prostatectomy, B. Active surveillance, C. External beam radiotherapy, D. Bilateral orchiectomy', 'role': 'user'}, {'content': 'Answer: B \nExplanation: T1 disease: These are incidentally found tumours in a clinically benign gland after histological examination of a prostatectomy specimen.For men in their 70s with low-risk disease, conservative treatment would usually be the correct approach.Low-risk prostate cancer (low PSA, small foci of Gleason6 disease) can be managed by active surveillance. Here, with 3- to 6-monthly digital rectal examination (DRE) and PSA measurement and repeated prostate biopsy.Bailey and Love 27e pg: 1473', 'role': 'assistant'}]