Definition: degeneration and necrosis of local tissue caused by inflammation

Pathological changes

Causes and Mechanisms

Metabolic changes

Exudation is an important marker of inflammation and plays an important defensive role in the inflammatory response.

Definition: The process by which fluid and cellular components in blood vessels in an inflammatory area enter tissue spaces, body cavities, or reach the body surface or mucosal surface through the blood vessel wall. It is the most characteristic change and plays an important local defensive role.

exudate

Definition: Under the action of inflammatory factors, parenchymal cells and interstitial cells in the inflammatory area can proliferate.

Mainly degeneration and necrosis, with exudation and mild hyperplasia

Heart, liver, kidney, brain

Often causes dysfunction of related organs

A large amount of exudate is formed, accompanied by a certain degree of deterioration, while the proliferation is relatively slight

serous inflammation

fibrinoid inflammation

purulent inflammation

hemorrhagic inflammation

The infiltrating cells in the inflammatory focus are mainly lymphocytes, plasma cells, and monocytes.

Lesions are primarily tissue destruction caused by inflammatory cells

There is often obvious proliferation of fibrous connective tissue, blood vessels, epithelial cells, glands and parenchymal cells.

Pneumonia - hypoxia, difficulty breathing

Arthritis - impaired walking

bacterial products

prostaglandins

significance