How can lung cancer kill?

Breathless: Frequently pulmonary obstructive symptoms, just cannot breathe, or pneumonia, and fever and sepsis, or metastatic disease in a critical area- brain for example, or the chest fills with fluid, one can break alone- hip and fall due to metastasis.

A disturbing list: Pneumonia, brain matastases, hypercalcemia, paraneoplastic encephalopathy, restrictive lung disease, medication side-effects, suffocation from wasting. Others. Hoping that you do not have lung cancer, or can get a cure, or that you get good hospice care -- the latter's a blessing that's fairly new.