Cancer can eventually lead to death through several mechanisms:

1. *Organ failure*: Cancer cells can invade and damage vital organs, such as the liver, lungs, or kidneys, leading to organ failure.

2. *Metastasis*: Cancer cells can spread to other parts of the body, causing new tumors to form and damaging vital organs.

3. *Infection and sepsis*: Cancer can weaken the immune system, making patients more susceptible to infections, which can lead to sepsis and death.

4. *Malnutrition and cachexia*: Cancer can cause loss of appetite, leading to malnutrition and cachexia (wasting syndrome).

5. *Bleeding and hemorrhage*: Cancer can cause bleeding and hemorrhage, leading to anemia, hypovolemic shock, and death.

6. *Hormonal imbalance*: Cancer can disrupt hormonal balances, leading to issues like adrenal crisis or thyroid storm.

7. *Paraneoplastic syndromes*: Cancer can cause paraneoplastic syndromes, such as hypercalcemia (elevated calcium levels) or hyponatremia (low sodium levels).

8. *Respiratory failure*: Cancer can cause respiratory failure by invading the lungs or airways.

9. *Cardiac complications*: Cancer can lead to cardiac complications, such as cardiac tamponade or myocardial infarction.

10. *Central nervous system involvement*: Cancer can invade the central nervous system, leading to seizures, coma, and death.

It's important to note that cancer is a complex and multifaceted disease, and the exact mechanism of death can vary depending on the type of cancer, its location, and the individual patient's condition.