This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: FMGE 2019, Subject name: Anatomy
[{'content': 'Most common tumour of mediastinum? \nSelect and explain. \nA. Thymoma, B. Lymphoma, C. Neurogenic tumor, D. Neuro blastic tumor', 'role': 'user'}, {'content': 'Answer: C \nExplanation: MC mediastinal masses are neurogenic tumors (20% of mediastinal tumors), usually found in the posterior mediastinum, followed by thymoma located in the anterior mediastinum. Lung cancer typically spreads to the lymph nodes in the mediastinum.', 'role': 'assistant'}]