This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Pediatrics
All of the fallowing are neural tube defects except – 
Select and explain. 
A. Myelomeingocoele, B. Anencephaly, C. Encephalocele, D. Holoprosencephaly
D: Holoprosencephaly
Answer: D: Holoprosencephaly 
Explanation: Holoprosencephaly is a developmental disorder of the brain that results from defective cleavage of the prosencephalon. It is thus a malformation of cortical development and not a neural tube defect.
 
The major neural tube defect include:
Spina bifida occulta                     Anencephaly                        Diastematomyelea •
Meningocele                                  Dermal sinus                        Lipoma involving conus medullaris
Meningomyelocele                       Tethered cord
Encephelocele     Syringomyelia