cellular 2 fatty change
Post on 26-Oct-2014
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General mechanisms
• Abnormal metabolism(fatty change)
• Protein mutations(abnormal proteins)lack of enzymes –lysosomal storage
• Inability to degrade ingested particles-exogenous/endogenous pigments
Icterus skin
Fatty streak
Fat necrosis pancreas
Normal fat
Necrotic fat near pancreas
Fatty change
bilirubin
lipofuscin
lipochrome
melanin
melanin
Alpha 1 antitrypsin
•
Glycogen PAS
hemosiderin
Prussian blue liver
Prussian blue renal tubule
Congo red amyloid
gaucher
anthracosis
Apoptosis liver
Foetal thymus apoptosis
Liquifaction necrosis
Celldeath myocardium
• When there is marked cellular injury, there is cell death. This microscopic appearance of myocardium is a mess because so many cells have died that the tissue is not recognizable. Many nuclei have become pyknotic (shrunken and dark) and have then undergone karorrhexis (fragmentation) and karyolysis (dissolution). The cytoplasm and cell borders are not recognizable.
Metastatic calcification
Dystrophic calcification stomach
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