This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Urethra & Penis, Subject name: Surgery
Tumor marker for seminoma testis is 
Select and explain. 
A. Alfa - fetoprotein, B. Carcinoembryonic antigens, C. Alpha HCG, D. Lactate dehydrogenase
D: Lactate dehydrogenase
Answer: D: Lactate dehydrogenase 
Explanation: Ans. (d) Lactate DehydrogenaseRef Surgery Sixer 3rd Edition Page 795Tumor markers in testicular cancers:* Beta HCG - Concentration is increased in Both Seminoma and Non Seminoma.* AFP - Concentration is increased in only non seminoma.* LDH - It is increased in both seminoma and non seminoma, but not specific.