BACKGROUND:

Dysembryoplastic neuroepithelial tumor is a less frequently primary central nervous system neoplasm that causes focal seizures resistant to pharmacological treatment in young patients and its presentation during pregnancy is very rare.

CASE REPORT:

We report here the case of a 33 years old woman who started with seizures at 12th week of her fourth gestation. She was diagnosed by cerebral magnetic resonance imaging with a left frontal lobe tumor and was observed carefully until the end of pregnancy solved by delivery without any complication. Second magnetic resonance was performed that evidenced enlargement of the injury, therefore resection was carried out and histopathological diagnosis was for dysembryoplastic neuroepithelial tumor. Although it was observed an influence of pregnancy on clinical behavior and growth of this kind of tumor we did not find expression of hormonal receptors in the cells of the lesion and treatment was not modified by gestation.

CONCLUSIONS:

So impact of pregnancy on dysembryoplastic neuroepithelial tumor is not explained by a hormonal influence and this kind of tumor stills being a benign neoplasm in the context of gestation, since it has shown no risk of maternal and fetal life threatening complications.

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