Diffuse Cortical Dysplasia in the Donor of Twin-to-Twin Transfusion Syndrome Following Fetoscopic Laser Photocoagulation: A Case Report
2021
Twin-to-twin transfusion syndrome (TTTS) is a severe gestational complication due to an imbalance of blood flow between monochorionic diamniotic twins. TTTS can cause brain damage, most commonly ischemic lesions, but there are only a few reports of cortical dysplasia. We report the case of a TTTS donor twin with diffuse cortical dysplasia. Fetoscopic laser photocoagulation was performed at 18 weeks of gestation, and no abnormalities were noted in the subsequent course of the pregnancy; however, infantile spasms developed at 4 months after birth, and brain magnetic resonance imaging revealed diffuse cortical dysplasia. It was bilateral and widespread. A genetic abnormality was suspected, but no pathogenic mutation was detected. Hypoperfusion may have altered the expression of guidance factors, resulting in abnormal cortical formation.
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