Which of the following is false about spina bifida occulta?
**Spina Bifida Occulta**
**Core Concept**
Spina bifida occulta is a congenital defect characterized by a small, non-symptomatic opening in the spine, usually in the lumbar or sacral region. This condition results from incomplete closure of the neural tube during embryonic development.
**Why the Correct Answer is Right**
In spina bifida occulta, the spinal cord and meninges are generally not exposed, and the condition is often asymptomatic. However, it can be associated with other abnormalities, such as a tuft of hair or a dimple in the lower back. The condition is usually diagnosed incidentally on radiographs or MRI scans.
**Why Each Wrong Option is Incorrect**
**Option A:** This statement might be true, but it's not a defining characteristic of spina bifida occulta. The condition can be associated with various spinal abnormalities.
**Option B:** This statement is false. Spina bifida occulta typically does not involve the exposure of the spinal cord or meninges.
**Option C:** This statement might be true, but it's not a specific characteristic of spina bifida occulta. Other spinal abnormalities can also be associated with this condition.
**Clinical Pearl / High-Yield Fact**
Spina bifida occulta often coexists with other spinal abnormalities, such as spondylolisthesis or degenerative disc disease. A thorough radiographic evaluation is essential to rule out more significant spinal pathology.
**Correct Answer:** B. This statement is false about spina bifida occulta.