Which form is the most common among spina bifida aperta?

Which form is the most common among spina bifida aperta?

• A. Meningocele
• B. Myelomeningocele
• C. Myeloschisis
• D. Occulta

Answer: (B)

Spina bifida aperta means an open spinal defect where neural tissue is exposed. The most common form of these open defects is when both the spinal cord and the meninges protrude through a vertebral gap in a sac—that's myelomeningocele. It’s more frequent than meningocele (which involves only meninges) or myeloschisis (exposed neural tissue without a sac), and occulta is a closed defect with no protrusion, not an aperta form. So, the sac containing both spinal cord and meninges—myelomeningocele—is the most common open presentation.

Spina bifida aperta means an open spinal defect where neural tissue is exposed. The most common form of these open defects is when both the spinal cord and the meninges protrude through a vertebral gap in a sac—that's myelomeningocele. It’s more frequent than meningocele (which involves only meninges) or myeloschisis (exposed neural tissue without a sac), and occulta is a closed defect with no protrusion, not an aperta form. So, the sac containing both spinal cord and meninges—myelomeningocele—is the most common open presentation.