infiltration

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infiltration

 [in″fil-tra´shun]
1. the pathological accumulation in tissue or cells of substances not normal to them or in amounts in excess of the normal.
2. infiltrate (def. 2).
3. the deposition of a solution directly into tissue; see infiltration anesthesia.
adipose infiltration fatty infiltration.
calcareous infiltration deposit of lime and magnesium salts in the tissues.
cellular infiltration the migration and accumulation of cells within the tissues.
fatty infiltration
1. a deposit of fat in tissues, especially between cells.
2. the presence of fat vacuoles in the cell cytoplasm.
intravenous infiltration
1. the movement of a needle or cannula from within a vessel into the surrounding tissue. The typical symptoms are a slowed flow of fluids, swelling, pallor, coolness of the skin, and discomfort in the area; severity of the symptoms will depend on the amount and type of fluid infused.
2. inadvertent administration of parenteral fluid into the tissues.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

in·fil·tra·tion

(in'fil-trā'shŭn),
1. The act of permeating or penetrating into a substance, cell, or tissue; said of gases, fluids, or matter held in solution.
2. The gas, fluid, or dissolved matter that has entered any substance, cell, or tissue. Synonym(s): infiltrate (2)
3. Injection of solution into tissues, as in infiltration anesthesia.
4. Extravasation of solutions intended for intravascular injection.
Farlex Partner Medical Dictionary © Farlex 2012

in·fil·tra·tion

(in'fil-trā'shŭn)
1. The act of permeating or penetrating into a substance, cell, or tissue; said of gases, fluids, or matter held in solution.
2. The gas, fluid, or dissolved matter that has entered any substance, cell, or tissue.
Synonym(s): infiltrate (2) .
3. Injection of solution into tissues, as in infiltration anesthesia.
4. Extravasation of solutions intended for intravascular injection.
Medical Dictionary for the Health Professions and Nursing © Farlex 2012

infiltration

The movement into, or accumulation within, a tissue or organ, of cells or material not normally found therein. Cellular infiltration, as with LYMPHOCYTES, is often part of an immunological response.
Collins Dictionary of Medicine © Robert M. Youngson 2004, 2005

in·fil·tra·tion

(in'fil-trā'shŭn)
1. The act of permeating or penetrating into a substance, cell, or tissue.
2. Injection of solution into tissues.
3. Extravasation of solutions intended for intravascular injection.
Medical Dictionary for the Dental Professions © Farlex 2012