The video briefly explains necrosis. Futher in the video it the tutor describes the the main types of necrosis and their pathologies individually. Timeline: 0:00 Necrosis 0:20 Pathology of necrosis 0:35 Changes occuring in necrotic cell injury 1:05 Coagulative Necrosis 5:06 Liquefactive Necrosis 6:45 Caseous Necrosis 7:50 Fat Necrosis 9:45 Fibrinoid Necrosis