Study links cancer to heightened risk of blood clots and early stroke
A comprehensive review of 82 studies finds that cancers, especially lung and pancreatic, can trigger clotting that leads to stroke, often within six months of diagnosis.
A systematic review conducted by Spanish investigators analyzed 82 studies spanning 2000-2025 to clarify how cancer can precipitate stroke. The analysis concluded that cancer-related blood clotting, termed cancer-associated coagulopathy, typically occurs within six months of a cancer diagnosis, often when the disease has already metastasized. Tumors of the lung lining and pancreas were most strongly linked, with arterial clot formation peaking in the first year.
About 72 % of affected patients experienced stroke as the primary outcome, and the risk stays elevated for as long as ten years compared with the general population. Potential mechanisms include mucin-driven platelet aggregation, circulating membrane particles, and neutrophil activity. Clinicians can monitor D-dimer levels and look for a three-region MRI lesion pattern to identify these strokes, underscoring the need for improved recognition as cancer incidence rises.
Why it matters
Understanding cancer-related clotting can improve stroke detection and treatment for millions of cancer patients.
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