Fertility preservation in women with CNS tumors.

INTRODUCTION: Fertility impairment due to treatments is a major concern for adolescents and young adult patients who survived cancer. Areas covered: Chemotherapy may determine a detrimental effect on ovary function, leading to infertility, and premature ovarian failure. Embryo and oocyte cryopreservation is a standard strategy for fertility preservation; other strategies, such as gonadal tissue cryopreservation and the use of gonadotropin - releasing hormone agonist, are still considered experimental. There are few data available regarding the effect of pregnancy on glioma, which indicates tumor progression during pregnancy in 33-45% of patients. Expert commentary: Glioma patients need to be advised about the risk of tumor progression during pregnancy, and about the possible, even if not proven, interaction between hormone stimulation and tumor growth.