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: Pathology
[{'content': 'All of the following malignancies are seen in anterior mediastinum except - \nSelect and explain. \nA. Teratoma, B. Thymoma, C. Lymphoma, D. Neuroenteric cyst', 'role': 'user'}, {'content': "Answer: D \nExplanation: Ans. is 'd' i.e., Neuroenteric cyst", 'role': 'assistant'}]