Which of the following is NOT a characteristic of necrosis?

Natural programmed cell death is not a characteristic of necrosis because necrosis is characterized by uncontrolled cell death that usually results from external factors such as injury, infection, or lack of blood flow. In contrast, programmed cell death, or apoptosis, is a highly regulated cellular process that serves to eliminate damaged or unneeded cells in a controlled manner without triggering an inflammatory response.

Additionally, necrosis typically involves the rupture of the cell membrane, which leads to the spilling of cell contents into the surrounding tissue, contributing to inflammation and potential damage to nearby cells. The other options relate to the immediate physical consequences of cell death due to pathological conditions, which are inherent to necrosis.