Healing and Gangrene - PowerPoint PPT Presentation

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Healing and Gangrene

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  1. Healing and Gangrene

  2. Gangrene: • It’s a necrosis with putrefaction, massive necrosis “ large tissue or whole organ. • It has 3 types: • 1- Dry or senile. • 2- Moist. • 3- Infective or Gas gangrene.

  3. 1- Dry gangrene “Gross”:

  4. Healing: • Replacement of damaged tissue by new, healthy, living tissue. • Either by: 1- Regeneration mechanism or 2- Scaring “fibrosis”, Organization. Regeneration is the replacement of tissue by same type of cells. Organization is the replacement of tissue by Granulation tissue.

  5. 2- Granulation tissue:

  6. 3- Granulation tissue:

  7. 4- Primary union:

  8. 5- Secondary union:

  9. 6- Myocardial scaring:

  10. 7- Repair after myocardial infarction: