Table 1: Common etiologies of superior vena cava syndrome.

Malignant (>85%)

BENIGN (3% to 15%)

Lung cancer

Indwelling catheters

Lymphoma

Thymoma

Breast Cancer

Cystic Hygroma

 

Tuberculosis

 

Histoplasmosis

 

Thyroid goiter

 

Aortic aneurysm