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: Surgery
[{'content': 'A new born presented with bloated abdomen sholy after bih with passing of less meconium. A full thickness biopsy of the rectum was carried out. Which one of the following rectal biopsy findings is most likely to be present - \nSelect and explain. \nA. fibrosis of submucosa, B. Hyalinisation of the muscular coat, C. Thickened muscularis propria, D. Lack of ganglion cells', 'role': 'user'}, {'content': "Answer: D \nExplanation: Ans. is 'd' i.e. lack of ganglion cells The diagnosis of Hirschprung's disease is suspected in this neonate, which is confirmed on rectal biopsy by the finding of - lack of ganglion cells.", 'role': 'assistant'}]