<prompt> Content of meningocele?Dura materSpinal cordBrain materCauda equina  <response>: Ans. is a i.e., Dura mater Ref: Ghai 8the p. 576Meningocele There is protrusion of meninges dura mater, arachnoid mater through a defect in neural arch. This contains only CSF. There may be associated genital tract abnormalities, e.g. vaginal septa and rectovaginal fistula.Myelomeningocele meningomyelocele There is protrusion of meninges along with some neural elements, e.g. spinal cord or cauda equina. It is the most severe form. The commonest site of lesion is lumbosacral region.Encephalocele There is protrusion of brain tissue cerebral cortex, cerebellum or brainstem through a cranial defect cranium bifidum. Most common site is occipital region. Hydrocephalus can occur due to aqueductal stenosis, chiari malformation or Dandy-Walker syndrome. 