Spina bifida myelomeningocele myelomeningocele is a severe type of spina bifida in which the membranes and the spinal nerves protrude at birth forming a sac on the baby s back. Spina bifida is a birth defect in which there is incomplete closing of the spine and the membranes around the spinal cord during early development in pregnancy.
The term spina bifida refers specifically to the bony defect in the vertebral column through which the meningeal membrane and cord may protrude spina bifida cystica or may not protrude so that the defect remains hidden covered by skin spina bifida occulta.
Spina bifida meningocele definition. The exposed nervous system may become infected so prompt surgery is needed after birth. The meningocele is a protrusion of a spinal fluid filled sac of meninges through a bony defect in the posterior elements of the spine without associated neural tissue herniation. There are three main types.
A meningocele represents a moderate form of spina bifida. It is not associated with a neurological deficit. It s when the spinal cord brain or meninges their protective covering does not completely.
A protrusion of meninges through a defect in the skull or spinal column as in spina bifida forming a cyst filled with cerebrospinal fluid. These fluid filled protrusions over the midline spine are covered by normal skin or a membrane fig. Meningomyelocele also commonly known as myelomeningocele is a type of spina bifida.
Spina bifida is what is known as a neural tube defect. Spina bifida is a condition that affects the spine and is usually apparent at birth. It occurs during development prior to birth.
It is a type of neural tube defect ntd. The most mild form is spina bifida occulta which does not involve any of the nervous system structures or the meninges just the bony spine in the lower back. Spina bifida is a birth defect in which the spinal canal and the backbone don t close before the baby is born.
Spina bifida occulta meningocele and myelomeningocele. Medical definition of meningocele. This is the mildest form of spina bifida cystica.
The most common location is the lower back but in rare cases it may be in the middle back or neck. Spina bifida can happen anywhere along the spine if the neural tube does not close all the way. The most severe form is a myelomeningocele which includes involvement of the spinal cord.
A protrusion of meninges through a defect in the skull or spinal column as in spina bifida forming a cyst filled with cerebrospinal fluid.