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Created page with " * In purulent inflammation, pus is the predominant feature. ** Pus is an admixture of dead and dying neutrophils with necrotic cells and a pyogenic agent. *** Proteolytic enzym..."
* In purulent inflammation, pus is the predominant feature.
** Pus is an admixture of dead and dying neutrophils with necrotic cells and a pyogenic agent.
*** Proteolytic enzymes released by the dying neutrophils lyse tissue cells to produce a fluid.
* Colour varies depending upon the agent.
** May be white, yellow, green or brown.
* An abscess is a circumscribed sphere of pus surrounded by a pyogenic membrane.
** The pyogenic membrane is composed of capillaries bringing neutrophils into the sphere.
** This rapidly becomes enveloped by a fibrous tissue capsule.
*** A local connective tissue response attempting to wall off the purulent irritant from nearby normal tissue.
[[Category:Acute Inflammation]][[Category:To Do - Blood]]