Necrosis is death of body tissue. It occurs when there is not enough blood flowing to the tissue, whether from injury, radiation, or chemicals. Necrosis is not reversible.
When substantial areas of tissue die due to a lack of blood supply, the condition is called gangrene .
Meningococcemia on the calves
Meningococcemia on the leg
Meningococcemia associated purpura
Necrosis of the toes