Which is the earliest histopathological change in myocardial infarction?
Time frameLight microscopy0-6 hoursNo change, stretching and waviness of fibres6-12 hoursCoagulative necrosis begins with neutrophilic infiltration48-72 hoursCoagulative necrosis is complete3rd-7th dayInitiation of resorption of necrosed fibres and fibrovascular response3rd weekNecrosed muscles removed and in growth of fibrocollagenous tissue.
Stretching and waviness of fibers
Neutrophilic infiltration
Coagulative necrosis
Fibrovascular response
C.V.S