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An embolus is a detached intravasclar solid, liquid, or gaseous mass that is carried by the blood to a site distant from its point of origin. Virtually 90% of all emboli arise in thrombi (thromboembolism). Rare forms of emboli include fragments of bone or bone marrow, atheromatous debris from ruptured atherosclerotic plaques, droplets of fat, bits of tumor, foreign bodies such as bullets, and bubbles of air of nitrogen. Lung embolism is the disease condition caused by pulmonary vasculature obstruction with various kinds of material mentioned above.
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