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flag Tumors invading blood vessels may cause cancer deaths via clotting, not just growth, new study finds.

flag A new study suggests cancer may kill patients not from tumor growth alone, but through blood clots triggered when tumors invade major blood vessels. flag Researchers analyzed autopsies and medical data from over 100 patients with advanced colon, lung, ovarian, liver, or pancreatic cancer, finding tumors frequently infiltrated large vessels near death. flag Blood tests showed a spike in circulating cancer cells, and CT scans of 1,250 German patients confirmed widespread vessel involvement. flag The team theorizes that tumor fragments in the bloodstream promote clotting, restricting blood flow to vital organs and causing organ failure. flag This may explain sudden deaths despite widespread cancer. flag A clinical trial is planned to test whether treatments like surgery or radiation targeting tumor-vessel contact can extend survival, potentially changing how advanced cancer is managed.

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