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: Medicine
Radical retroperitoneal lymphnode dissection is indicated for all the following testicular tumours except - 
Select and explain. 
A. Choriocarcinoma, B. Teratoma, C. Teratocarcinoma, D. Seminoma
D: Seminoma
Answer: D: Seminoma 
Explanation: None