CLINICAL CASE:

We present a peculiar case in which an immature teratoma is diagnosed by an ovarian torsion in a 30 year old patient. She wanted to preserve her fertility, so she underwent conservative surgical treatment, previous vitrification of her oocytes. One year after the end of the chemotherapeutic treatment, the patient became pregnant through in vitro fertilization performed with her own devitrified oocytes. Another cyst in the contralateral ovary was diagnosed three years after the surgical intervention so she was reintervenated, it was a mature teratoma.

CONCLUSIONS:

Immature ovarian teratoma is an uncommon pathology whose treatment is controversial. Since most patients are young, we should try to preserve fertility if the patient wishes, by offering cryopreservation of oocytes when indicated. Due to the high rate of recurrence, often in the form of mature teratoma, it is important to follow-up closely after the treatment.