Spina Bifida Occulta

■ Bony defect with no herniation of meninges or ner­vous elements

■ Incidental finding in 5% to 36% of adults; a small percent can develop clinical findings (21,22)

■ Can be associated with pigmented nevus, angioma, hairy patch, dimple, and dermoid sinus

■ Usually found in the lumbosacral/sacral segments

■ Can have associated tethered cord with development

■ May have bowel and bladder involvement

■ No hydrocephalus or Chiari malformation