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Prenatal diagnosis and delivery of megalencephaly–capillary malformation syndrome


Hemimegalencephaly (HME) is a rare neurological diagnosis defined as hamartomatous overgrowth of one cerebral hemisphere. The hypothesised pathogenesis is due to an increased number or size of neural cells; however, the exact mechanism can vary widely, depending on the underlying aetiology. We report a case outlining the prenatal diagnostic process and obstetric considerations for delivering an infant with HME secondary to megalencephaly–capillary malformation syndrome. After diagnosis, our patient was induced and delivered at 37 weeks of gestation via operative vaginal delivery. To our knowledge, this is the first report describing the course from prenatal diagnosis through delivery of a fetus with HME.

  • Neurology
  • Obstetrics and gynaecology
  • Materno-fetal medicine
  • Neonatal and paediatric intensive care
  • Neonatal health

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