This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Testis & Scrotum, Subject name: Surgery
[{'content': 'Most probable cause for a 70 yr old man presenting with tes-ticular tumour is \nSelect and explain. \nA. Seminoma, B. Lymphoma, C. Teratoma, D. Choriocarcinoma', 'role': 'user'}, {'content': "Answer: B \nExplanation: Ans b (Lymphoma) Ref: Bailey & Love's slum practice of surgery 25th editionIncidenceSeminoma - 40%Teratoma - 32%Combined seminoma&teratoma -14%Interstitial tumours -1.5%Lymphoma - 7%Others - 5.5 %Age group< 10 yrs - Yolk sac tumour (most common)20 - 40 yrs - GCT (seminoma)50 yrs - LymphomaSpermatocytic seminoma (10% of the seminomas of which half occur in men over 50 years of age)", 'role': 'assistant'}]