Mediastinal tumors

Most common and interesting oncopathologies of this localization.
How often and who has mediastinal tumors?
The common signs of mediastinal tumors.
Compression syndrome of the superior vena cava.
Tumors of the thymus gland: thymoma and thymus carcinoma.
Neurogenic tumors.
Germinogenic (germinal) oncopathology.
Lymphoid tumors, or lymphomas.
Mesenchymal tumors.