The evaluation of superior vena cava syndrome begins with a history and physical examination.

Physical findings in someone with superior vena cava syndrome include:

• Arm swelling (bilateral)
• Face swelling
• Neck swelling
• Swollen veins in the neck

Tests are necessary to make the diagnosis of superior vena cava syndrome

Tests that may be used to evaluate superior vena cava syndrome include:

• Chest x-ray
• CT scanning of the chest
• MRI scanning of the chest
• Venogram