This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Urinary tract, Subject name: Pathology
The most common malignant tesicular neoplasm is 
Select and explain. 
A. Teratoma, B. Seminoma, C. Choricocarcinoma, D. Lymphoma
B: Seminoma
Answer: B: Seminoma 
Explanation: Testicular neoplasms occur in roughly 6 per 100,000 males. Tumors of the testis are a heterogeneous group of neoplasms that include germ cell tumors and sex cord stromal tumors. In postpubeal males, 95% of testicular tumors arise from germ cells, and all are malignant. Most testicular tumors in postpubeal males arise from germ cell neoplasia in situ. Testicular germ cell tumors are subclassified into seminomas and nonseminomatous germ cell tumors. ref: ROBBINS BASIC PATHOLOGY 10th Ed. pg no: 693 Most common tumor of the testis: Seminoma Mixed germ cell tumor Most common testicular tumor in infant and children up to 3 years: Yolk sac tumor Most common testicular tumor in prepubeal children: Teratoma Most common testicular tumor >60 years: Lymphoma Most common bilateral tumor Primary is seminoma Secondary is lymphoma Ref: RAM DAS NAYAK EXAM PREPARATORY MANUAL FOR UNDERGRADUATES 2nd ed. pg no: 651