Hydrocephaly-Cerebellar Agenesis Syndrome

A rare developmental defect during embryogenesis malformation syndrome characterized by congenital, non-communicating hydrocephalus, cerebellar agenesis and absence of the Luschka and Magendie foramina. Patients present with hypotonia, areflexia or hyporeflexia, seizures and/or cyanosis shortly after birth and is fatal in the neonatal period. There have been no further descriptions in the literature since 1973.