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Extravasation
Pronunciation
Definition 1
The leakage of blood, lymph, or other fluid, such as an anticancer drug, from a blood vessel or tube into the tissue around it. It is also used to describe the movement of cells out of a blood vessel into tissue during inflammation or metastasis (the spread of cancer). (NCI Dictionary)
Definition 2
The leakage of body fluid or cells from the vascular system to the surrounding tissues. This process occurs either by force or as a result of a pathologic reaction (e.g., inflammation). This process may sometimes allow cancer cells to migrate from capillaries to adjacent tissues, initiating micro-metastases. (NCI Thesaurus)
Definition 3
A discharge or escape, as of blood, from a vessel into the tissues. (Food and Drug Administration)
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