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
The most common mediastinal tumor is- 
Select and explain. 
A. Neurogenic tumor, B. Pericardial cyst, C. Hernia, D. Teratoma
A: Neurogenic tumor
Answer: A: Neurogenic tumor 
Explanation: Overall most common mediastinal masses are neurogenic tumors (20%) followed by thymomas (19%), primary cysts (18%), lymphomas (13%) and germ cell tumors (10%).
Most of the mediastinal masses are located in the anterior mediastinum followed by the posterior (25%) and middle (19%).