<prompt> Which of the following is the most common pure malignant germ cell tumour of ovary :ChoriocarcinomaGonadoblastomaDysgerminomaMalignant teratoma  <response>: - dysgerminoma is the most common among the malignant germ cell tumors accounting for 40. - affects children and young women. Reference : textbook of gynaecology Sheila balakrishnan, 2nd edition, pg no: 283 