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Fetal Glioblastoma: Rapid Growth during the Third Trimester

We present a case of fetal glioblastoma which appeared after 28 weeks’ gestation. The first ultrasonographic finding was an enlarged fetal head with right shifted falx cerebri at 31 weeks’ gestation. At 33 weeks, a large and high echogenic mass in the left hemisphere and right enlarged ventricle was identified. Magnetic resonance imaging showed that the tumor was localized in the left hemisphere and a margin of the tumor was defined. Because fetal well-being judging from biophysical parameters was good and we considered that the tumor was resectable, a male fetus weighing 2,670 g was delivered at 34 weeks’ gestation by cesarean section. However, he was inoperable due to consumptive coagulopathy and rapid growth of the tumor, and died on the 41st day of life.