Necrosis is another form of cellular suicide, much like
Apoptosis, only in Necrosis, the cell does not totally disappear.
The mitochondria of the cell swell, as do all of the cytoplasmic compartments of the cell. The plasma, organelle and nuclear membranes all dissolve, and ribosomes disappear. Eventually the cell disintegrates, and leaves little bits and pieces.
Very easy to recognize.