ACUTE and CHRONIC INFLAMMATION

Vascular congestion

Acute inflammation with edema

Leukocytic margination

Acute pneumonia

Acute esophagitis

6Acute inflammation in myocardium

the liquefactive necrosis in a cerebral infarction

Morphologic patterns of inflammation

Serous inflammation

fibrinous inflammation

yellow-tan clouding of the meninges: acute meningitis

yellow-tan exudate obscures the sulci

neutrophilic exudate is seen involving the meninges

yellow to tan exudate and hyperemia, including the periappendiceal fat

tan-yellow exudate

gastric ulcer

Outcomes of acute inflammation

Fibrous scar in skin

Fibrous scar in skin

Irregular fibrosis in lung

Subcutaneous abscess

cerebral abscess

Hepatic abscess

CHRONIC inflammationCHRONIC inflammation

Chronic inflammationChronic inflammation

chronic cervicitis

Chronic pneumonia

Chronic inflammationChronic inflammation

viral myocarditis

chronic prostatitis

Tuberculous pneumonia

Tuberculous pneumonia

granuloma

Caseative necrosis

Foreign body granuloma

Foreign body granuloma

REPAIR

numerous capillaries & collagen is being laid down to form a scar

remote infarction: pale white collagen within the interstitium

Pressure ulcer of the skin

skin ulcer with a large gap between

the edges

A thin layer of epidermal re-epithelialization, and extensive granulation tissue

Continuing re-epithelialization of the epidermis

Keloids

Keloids

Keloids

Granulation tissue

Granulation tissue

obstructing the view of the normal

larynx

Granulation tissue