HM/CH-1/L-8 MORPHOLOGY OF CELL INJURY lectures/Pathology/HM_CH1_L8.pdf · MORPHOLOGIC FORMS OF CELL...

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HM/CH-1/L-8 MORPHOLOGY OF CELL INJURY

Transcript of HM/CH-1/L-8 MORPHOLOGY OF CELL INJURY lectures/Pathology/HM_CH1_L8.pdf · MORPHOLOGIC FORMS OF CELL...

Page 1: HM/CH-1/L-8 MORPHOLOGY OF CELL INJURY lectures/Pathology/HM_CH1_L8.pdf · MORPHOLOGIC FORMS OF CELL INJURY MECHANISMS 1. Reversible cell injury 2. Deranged cell metabolism 3. ...

HM/CH-1/L-8

MORPHOLOGY OF CELL INJURY

Page 2: HM/CH-1/L-8 MORPHOLOGY OF CELL INJURY lectures/Pathology/HM_CH1_L8.pdf · MORPHOLOGIC FORMS OF CELL INJURY MECHANISMS 1. Reversible cell injury 2. Deranged cell metabolism 3. ...

MORPHOLOGIC FORMS OF CELL INJURY

MECHANISMS1. Reversible cell injury2. Deranged cell

metabolism3. Irreversible cell

injury4. Programmed cell

death5. Residual effects6. After-effects

NOMENCLATURE1. Retrogressive

changes(degenerations)2. Intracellular

accumulations 3. Cell death-necrosis4. Apoptosis5. Subcellular alterations6. Gangrene, pathologic

calcification

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TYPES OF CELL DEATH AUTOLYSIS:

-Speed: rapid, intermediate, slow NECROSIS:

-Etiologic agents-Cell digestion by lytic enzymes, denaturation of proteins

APOPTOSIS:-Programmed cell death

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TYPES OF NECROSIS

Coagulative necrosis Liquefactive (colliquative) necrosis Caseous necrosis Fat necrosis Fibrinoid necrosis

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Coagulative necrosis

DefinitionGA

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Coagulative necrosisME

ME

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Liquefactive necrosis

Defintion GA & ME

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Caseous necrosis

Defintion GA

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Caseous necrosis: ME

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Fat necrosis

Definition GA, locations ME

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Fibrinoid necrosis

Definition Locations ME