True about endodermal sinus tumors :: (A) Schiller duval bodies seen, (B) It is a benign tumour, (C) HCG, (D) It is seen in young individuals
Answer is A. -endodermal sinus tumors are also termed yolk sac tumors as they are derived from the primitive yolk sac. - the characteristic microscopic finding is the endodermal sinus or Schiller Duval body. - this is a cystic space lined with a layer of flattened endothelium into which projects a glomerulus like tuft with a central vascular core. Reference : textbook of gynaecology Sheila balakrishnan, 2nd edition, pg no: 283