How does pus spread inside the tissue
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How does pus spread inside the tissue

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How does pus spread inside the tissue How does pus spread inside the tissue Presentation Transcript

  • How does pus spread inside the tissues? By: Calibo, Jansen S.
  • Pus Pus is an exudate, typically white- yellow, yellow, or yellow- brown, formed at the site of inflammation during infection. An accumulation of pus in an enclosed tissue space is known as an abscess, whereas a visible collection of pus within or beneath the epidermis is known as a pustule or pimple.
  •  An abscess (pus accumulation) develops when the bodys immune system isolates an area of body tissue that has been infected by an invading microorganism * (usually bacteria) to prevent the infection from spreading further into the body. It does this by sending infection- fighting leukocytes to the infected area; leukocytes are specialized white blood cells that can destroy infectious microorganisms such as bacteria, parasites, and viruses.
  • As the bacteria and white bloodcells clash at the site of infection: Pus begins to form within the involved tissue. As the infection progresses, a wall of tissue develops surrounding the infection site. This area filled with pus and becomes inflamed.
  •  When pus spread deeply into soft tissue rather than exiting through oral or cutaneous routes, fascial spaces may become involved following path of least resistance. This path of least resistance is the so called Fistula, the passageway of pus into the surface. And later on will form boil on the surface. A boil usually starts out within an area of infection and inflammation. The growing pus inside the boil creates pressure and swelling around the infected spot, often forming a drainage point at the surface of the skin called a head.
  • EXAMPLE
  •  Pulpitis > Necrosis/Progresses to apex > chronic inflammation extends to periapical and periodontal ligaments > granulation tissue > resorption > area of inflammation > formation of fistula > gum boil