The mentioned video tells us about Emphysema. The types of emphysema are also discussed. Pathogenesis and morphology of the disease is also provided. TIMELINE: 0:00 Introduction 0:39 What is Emphysema? 0:59 Types of emphysema 1:53 Centrilobular emphysema 2:9 Panlobular Emphysema 3:11 Distal Acinar Emphysema 3:51 Irregular Emphysema 4:15 Pathogenesis 8:12 Morphology