![A new study has found that a chemotherapy drug weakens blood vessels, giving breast cancer cells a foot in the door to spread to the lungs. (Justin Sullivan/Getty Images)](https://www.heartandsoul.com/wp-content/uploads/2021/11/feat_7b8f89a1-ea2e-4573-9043-4c11ff572e37-326x245.jpeg)
Health
Toxic Shock: Chemotherapy Drug Helps Breast Cancer Spread To The Lungs, Says Study
Treatment alters the wall structure of blood vessels and allows cancer cells to squeeze into a patient’s lungs.
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