Lung cancer and malignant pleural effusion

The pleura are thin layers around the lungs. When fluid collects between them, the lung may have less room to expand. This can cause breathlessness, chest heaviness, cough or reduced exercise tolerance. Fluid may be tested with a needle to look for cancer cells and infection; imaging shows its amount and location. Lung cancer is one possible cause, but breast cancer and mesothelioma can also cause a malignant pleural effusion.

A drainage procedure can remove fluid and improve breathing. If it returns, the team may discuss a longer-term drain or a procedure to reduce re-accumulation. Cancer treatment is chosen according to tumour type, spread, prior therapy and health. Palliative care can work alongside oncology treatment to address breathlessness, pain, anxiety, sleep and home support.

Contact your care team for increasing breathlessness, new chest pain, fever, dizziness or a marked fall in activity. Call emergency services for severe breathlessness at rest, blue lips, fainting, confusion or sudden chest pain. Sit upright while waiting for help and use prescribed medicines as directed.

How was the fluid confirmed? Does it contain cancer cells? Would drainage help now? What can reduce recurrence? Which cancer treatment fits my results? Who should I call if breathing worsens at home?