“Cancer in the lung can cause fluid to build up between the layers that cover the lung (the pleura). This is called a pleural effusion,” Cancer Macmillan Support explains.
To treat pleural effusion, the fluid will need to be drained by a professional medical doctor.
If a lung tumour presses on the superior vena cava, a big vein that carries blood from the upper body to the heart, then sudden symptoms of a blockage can occur.
These symptoms of a blockage can include:
- A feeling of fullness in the face when you bend over
- Breathlessness
- Headaches
- Swelling in the face, neck, arms, hands, and veins in the chest
- Feeling dizzy
- Changes in your eyesight.