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Definition of inflammation

• protective response to eliminate the initial cause of cell injury
as well as the necrotic cells resulting from the original insult.

• It occurs in the vascularized connective tissue.

• Inflammation is closely related to and followed by repair
process

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Patterns of inflammation:

Acute inflammation:
 immediate and early response to injury
 characterized by fluid and plasma protein exudation
 predominant neutrophilic accumulation
 It last only for few minutes to few days.
Chronic inflammation:
 delayed response
 characterized by influx of macrophages and lymphocytes
with associated vascular proliferation and scarring.

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