Medicine A 60 year old male presented to the emergency with breathlessness, facial swelling and dilated veins on the chest wall. The most common cause is: A Thymoma B Lung cancer C Hodgkin's lymphoma D Superior vena caval obstruction 💡 Explanation A 60 year old male presented to the emergency with breathlessness, facial swelling and dilated veins on the chest wall. The most common cause is: ✓ Correct Answer: D. Superior vena caval obstruction