This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Breast, Subject name: Pathology
Endodermal sinus tumor is characterized by 
Select and explain. 
A. Schiller-Duval body, B. psammoma body, C. Call-Exner bodies, D. Horner-Wright rosettes
A: Schiller-Duval body
Answer: A: Schiller-Duval body 
Explanation: Yolk sac tumors/Schiller-Duval body are the most common primary testicular neoplasm in children younger than 3 years of age; in this age group it has a very good prognosis. In adults, yolk sac tumors most often are seen admixed with embryonal carcinoma.A distinctive feature is the presence of structures resembling primitive glomeruli, the so-called Schiller Duvall bodies. ref : Robbins Basic Pathology, 9E,page-661 Ref of img