<prompt> Bilateral germ cell tumour is:DysgerminomaImmature teratomaEmbryonal cell carcinomaEndodermal sinus tumour  <response>: -Germ cell tumors are common in children and young adults and are derived from primordial germ cells of the ovary. -among germ cell tumors, only dysgerminoma is bilateral 15. Reference : textbook of gynaecology Sheila balakrishnan, 2nd edition, pg no:-282 p 