<s>[INST]My mother in law has lung cancer and keeps getting fluid drained from her lungs? They are talking about putting in a tube so she can drain them from home? How serious is this procedure and does this mean her cancer has progressed and she is going to pass away soon?[/INST]Your mother-in-law is suffering from stage 4 lung cancer. The tube inserted in her tube is called chest tube. It will help her as the recurrent fluid which will accumulate in her lungs will Chat Doctor. A procedure called pleurodesis can be done where a chemical is inserted in the lungs through the chest tube which will cause the fluid not to be accumulated in her chest anymore. She is in stage 4 lung cancer and now the aim should only be basic supportive care. Regards</s>