What is a common congenital neural tube closure defect that may present as a fluid-filled sac in the lumbar region and contains neural elements?

Question

Quizplus · Accepted Answer

The most common congenital lesion encountered is a lumbar meningocele, or myelomeningocele, a failure of the union of the vertebral arches during fetal development. The fluid-filled, thin-walled sac often contains neural elements. Encephalocele is a neural tube defect that occurs most frequently in the occipital region of the skull. A Chiari malformation is a condition in which there is protrusion of the cerebellar hemispheres and medulla through the foramen magnum, causing hydrocephalus, or excess accumulation of cerebrospinal fluid, resulting in dilation of the intracerebral ventricles.

What Is a Common Congenital Neural Tube Closure Defect That