[Meningomyelocele with spinal cord cyst and internal hydrocephalus in a 9-month-old boy]. / Przepuklina oponowa z torbiela rdzeniowa oraz wodoglowiem wewnetrznym u 9-miesiecznego chlopca.

The authors describe a boy aged 9 months with open myelomeningocele which changed gradually into meningocele with spinal cord cyst. During treatment internal hydrocephalus developed requiring insertion of Pudenz-Heyer ventriculoatrial. valve. The treatment was successful. The case illustrates the succession of changes which may develop in myelomeningocele and the relationship between the state of internal hydrocephalus and the volume of meningocele and spinal cyst (cerebrospinal fluid production exceeding its resorption).