Necrosis

[Sarah]

Mortification or gangrene of bone, or the death of a bone orportion of a bone in mass, as opposed to its death by moleculardisintegration. See Caries.

[Sarah]

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.

[Britney]

The death of most or all of the cells in an organ or tissue due to disease, injury, or failure of the blood supply.

[Little_Girl]

death of cell tissues