This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Physiology
[{'content': 'A newborn has a posterior mediastinal cystic mass with several veebral anomalies. The most likely diagnosis would be which of the following? \nSelect and explain. \nA. Neuroblastoma, B. Bronchogenic cyst, C. Neuroenteric cyst, D. Myelocele', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Neuroenteric cyst / esophageal duplication cyst is round or tubular lesion occurring in the lower posterior mediastinum, which often disto esophagus but only rarely communicate with the esophageal lumen a chest x-ray may show a right-sided mediastinal mass and associated veebral anomalies like hemiveebra, block veebra, butterfly veebra or spina bifida, if present.', 'role': 'assistant'}]