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: Surgery
Disseminated seminoma is treated by 
Select and explain. 
A. CT or RT and orchidectomy, B. Only RT, C. Only CT, D. Retroperitoneal lymphnode dissection
A: CT or RT and orchidectomy
Answer: A: CT or RT and orchidectomy 
Explanation: None