NCIt definition : 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.;
Alternative definition : NCI-GLOSS: 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).; FDA: 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).;