Types Of Necrosis Flashcards
What type of ONCOTIC necrosis is this:
Tissue archituture preserved
Cell outlines still recognizable
Plate tan to pale grey
Solid
Coagulative necrosis
What 3 things typically cause coagulative necrosis?
Hypoxia
Ischemia
Toxic injury
What in a focal area of coagulative necrosis resulting from failure of blood supply- ischemia?
Infarct
What is when blood enters infarcted tissue because blood flow restored in the obstructed vessel or arrived from collateral circulation?
Hemorrhagic infarct
What is after a few days macrophages remove blood from acute hemorrhagic infarct?
Ischemia infarct or pale infarct
What is when small intestinal volvulus occurs when the intestine twists around itself, compressing the veins?
Venous infarct
What is a common venous infarct in horses?
Strangulating lipoma
What is a type of necrosis is caused by toxic injury- when the muscle looks like raw chicken meat?
Coagulative necrosis
What type of necrosis is:
Older lesion with complete loss of cellular tissue architecture
Cell outlines NOT visible
Granular to amorphous eosinophilic substance with basophilic nuclear debris
Mineralization
Caseous
Caseous necrosis = indicate ________ = persistent injury = bacteria that can replicate inside of macrophages
Chronicity
What are Mycobacterium (tb) and Corynebacterium pseudo tuberculosis infections example of?
Caseous necrosis
What type of necrosis is:
Necrotic tissue is converted to a fluid phase
Cells are lysed by lytic enzymes of neutrophils
Yellow, soft, liquid consistency
Liquefactive necrosis
What type of necrosis are these examples of?
Necrosis of CNS
Infection of pyogenic (pus forming) bacteria (at center of abscesses)
Liquefactive necrosis
What is the term of forms appearance of necrosis in the CNS?
Malacia
