tissueinjury Flashcards
what is coagulative necrosis
cell and tissue death due to loss of energy
-usually due to hypoxia
what is the fundamental event that results in most cases of tissue injury?
cell injury
what is liquefactive necrosis?
cell and tissue death associated with liquefaction in response to neutrophil enzymes
what is caseous necrosis?
a type of coagulative necrosis where the necrotic tissue is surrounded by a chronic inflammatory response
what is gangrenous necrosis?
areas of coagulative necrosis that are subsequently infected by bacteria and undergo putrefication
-ischemia (reduction in oxygen supply to the area) is the common underlying cause
what is ischemia?
reduction in oxygen supply to the area
what is fat necrosis?
a process that occurs in fat due to the destruction of adipocytes by lipases
-most often occurs with pancreatitis