True/false about mediastinal masses Thymoma is most common anterior mediastinal mass. Neurogenic tumour is most common posterior mediastinal mass. IOC to evaluate anterior and posterior mediastinal mass is MRI. Extramedullary hematopoiesis is a type of anterior mediastinal mass. Mediastinal mass forms an acute angle with lung surface.
High-Yield Explanation
Thymoma is most common anterior mediastinal mass. Neurogenic tumour is most common posterior mediastinal mass. LEFT- A lung mass abutts the mediastinal surface and creates acute angles with the lung. RIGHT: A mediastinal mass will sit under the surface of the mediastinum, creating obtuse angles with the lung.