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