This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Male Genital Tract, Subject name: Pathology
Schiller- Duval bodies is seen in: 
Select and explain. 
A. Choriocarcinoma, B. Embryonal cell Ca, C. Endodermal sinus tumour, D. Immature teratoma
C: Endodermal sinus tumour
Answer: C: Endodermal sinus tumour 
Explanation: Ans. (c) Endodermal sinus tumour(Ref: R 9th/pg 977)Yolk sac tumor or endodermal sinus tumor is the most common testicular tumor in infants and children <3 yrs of age. It has good prognosis