This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Congenital CNS malformations, Subject name: Pediatrics
[{'content': 'What is the name of the congenital anomaly this child is suffering from? \nSelect and explain. \nA. Encephalocele, B. Anencephaly, C. Hydranencephaly, D. Diastematomyelia', 'role': 'user'}, {'content': 'Answer: B \nExplanation: - In the child given in image - skull bones are absent & the brain parenchyma is exposed; which is characteristic to anencephaly. Other options: Encephalocele - neural tube defect characterized by sac-like protrusions of the brain & membranes that cover it through openings in the skull Hydranencephaly - cerebral hemispheres are absent & replaced by fluid filled sac -Transillumination +ve Diastematomyelia - rare congenital anomaly that results in the "splitting" of the spinal cord in a longitudinal (sagittal) direction.', 'role': 'assistant'}]