Several types of necrosis can occur, each with distinct characteristics:
Coagulative Necrosis: Typically occurs in response to ischemia or infarction, where the architecture of the tissue is preserved for a few days. It is common in the heart, kidney, and spleen.
Liquefactive Necrosis: This type occurs when cells are completely digested by enzymes, resulting in a liquid mass. It is often observed in the brain following a stroke.
Caseous Necrosis: Characterized by a cheese-like appearance, it is associated with tuberculosis infections.
Fat Necrosis: Occurs when lipases break down fatty tissues, often seen in acute pancreatitis.
Gangrenous Necrosis: This occurs when large areas of tissue die, often due to a lack of blood supply, and is often seen in the extremities.