Which is the most common cause of SVC syndrome?
Lung cancer is the most common cause of SVC syndrome. Non Hodgkins lymphoma is the second most common cause. Primary mediastinal malignancies such as thymoma and germ cell tumors account for less than 2% cases. Breast cancer is the most common metastatic disease causing SVC syndrome.
Lung cancer
Trauma
Thymoma
Fibrosis of SVC