Tissue necrosis
Tissue Necrosis
Tissue necrosis (pronunciation: /ˈtɪʃuː nɪˈkroʊsɪs/) is a form of cell injury which results in the premature death of cells in living tissue by autolysis.
Etymology
The term "necrosis" is derived from the Greek word "nekros", which means "dead body". The term "tissue" is derived from the Latin word "textus", meaning "woven".
Definition
Tissue necrosis is characterized by the death of cells or tissues without the normal process of cell apoptosis or programmed cell death. This can occur due to factors external to the cell or tissue, such as infection, toxins, or trauma which result in an unregulated digestion of cell components.
Types
There are several types of tissue necrosis, including:
- Coagulative necrosis
- Liquefactive necrosis
- Caseous necrosis
- Fibrinoid necrosis
- Gangrenous necrosis
- Fat necrosis
Each type of necrosis has a different cause and appears differently when examined under a microscope.
Causes
Tissue necrosis can be caused by a number of factors, including:
Treatment
Treatment for tissue necrosis typically involves addressing the underlying cause, such as treating an infection or removing a source of toxins. In some cases, surgical removal of the necrotic tissue may be necessary.
Related Terms
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