Chapter 30: The Neonatal Spine

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1

cauda equina

bundle of nerve roots from the lumbar, sacral, and coccygeal spinal nerves that descend nearly vertically from the spinal cord until they reach their respective openings in the vertebral column

2

conus medullaris

the caudal end of the spinal cord

3

diastematomyelia

a congenital fissure of the spinal cord, frequently associated with spina bifida cystica

4

dysraphic

describes anomalies associated with incomplete embryologic development

5

filum terminale

slender tapering terminal section of the spinal cord

6

hydromyelia

dilation of the central canal of the spinal cord

7

lipoma

common benign tumor composed of fat cells

8

meningocele

protrusion of the meninges through the gap in the spine, the skin covering being vestigial

9

myelomeningocele

the spinal cord and nerve roots are exposed, often adhering to the fine membrane that overlies them

10

myeloschisis

cleft spinal cord resulting from failure of the neural tube to close

11

spina bifida aperta

open (non-skin-covered lesions) neural tube defects, such as myelomeningocele and meningocele

12

spina bifida occulta

closed (skin-covered lesions) neural tube defects, such as spinal lipoma and tethered cord

13

tethered spinal cord

fixed spinal cord that is positioned in an abnormal position