Which of these is a neural tube defect?: (A) Spina bifida occulta, (B) Encephalocele, (C) Dermal sinus, (D) All of these are NTD
Answer is D. Ans. D. All of these are NTDNeural tube defects are failure of closure of the neural tube between 3rd-4th weeks of intrauterine life. Important neural tube defects include spina bifida occulta, meningocele, meningomyelocele, dermal sinus, encephalocele, anencephaly, syringomyelia and diastematomyelia.