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
[{'content': 'Which of the following malformation in a newborn is specific for maternal insulin dependent diabetes mellitus ? \nSelect and explain. \nA. Transposition of great arteries, B. Caudal regression, C. Holoprosencephaly, D. Meningmyelocele', 'role': 'user'}, {'content': "Answer: B \nExplanation: The fetal malformations seen in Caudal regression syndrome are the most typical seen in cases of maternal diabetes'.- Early detection of caudal regression syndrome, D. Subtil et al.\nCaudal regression :\n\nCaudal regression syndrome (CRS) is a rare malfonnative syndrome seen mainly in cases of maternal diabetes with poor metabolic control.\nThis syndrome associates vertebral agenesis of variable level with genito-urinary and digestive malformations. These abnormalities are related to the impaired development of the mid-posterior axis mesoderm", 'role': 'assistant'}]