View source for Pyogenic

{{Wiktionary}}
{{merge-to|Pus|date=March 2010}}
'''Pyogenic''' refers to [[bacteria]]l [[infection]]s that make [[pus]].<ref>{{DorlandsDict|seven/000088920|pyogenic}}</ref>

The pus is mostly composed of dead [[neutrophil]]s that are destroyed by bacteria such as ''Streptococcus pyogenes'' and ''Staphylococcus aureus'' through the release of [[leukocidin]]s.<ref name=Biology>Madigan, Michael T. and Martin, John M. Brock Biology of Microorganisms 11th ed. Pearson Prentice Hall. USA. 2006: 734</ref> Therefore leukocidin producing bacteria are usually referred to as pyogenic.<ref name=Biology/>

The name for [[pyogenic granuloma]] is misleading because it is not a true [[granuloma]] and is not pus forming. Actually, it is a [[capillary hemangioma]] of [[lobular]] subtype which is the reason they are often quite prone to bleeding.<ref>Jafarzadeh H, Sanatkhani M, Mohtasham N (December 2006). "Oral pyogenic granuloma: a review" ([dead link] – Scholar search). J Oral Sci 48 (4): 167–75. doi:10.2334/josnusd.48.167. PMID 17220613. http://joi.jlc.jst.go.jp/JST.JSTAGE/josnusd/48.167?from=PubMed. Retrieved 2009-01-04.</ref>

== See also ==
* [[Pyogenic infection]]

== References ==
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[[Category:Medical terms]]

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