This is worth emphasizing in a thread asking “Cancer, what exactly kills you?”. So, just to make it clear for those who may not be aware of the strong association of cancer and clots, I wanted to point out that “pulmonary embolism”, i.e. a blood clot that travels to the lungs, is a common complication, and cause of death, in cancer patients.
As I noted in my post above (#7), people with cancer almost always have a propensity to form blood clots inappropriately and spontaneously. The mechanism for this phenomenon is not clear. In any case, blood clots are a major and in my opinion, underappreciated, cause of death in people with cancer.
(For those interested in learning more about this important association, here are two free, full-text review articles: Review #1; Review #2)