Rubor (redness), tumor (swelling), calor (heat), and dolor (pain) are the classical signs of inflammation. These features are obvious in the skin, where injury or disease causes flare, wheal, and painful burning sensations. Vasodi- tation underlies the flare and heat, plasma exudation the swelling, and acti- tion of sensory nerves relays pain. In chronic conditions, skin biopsies show inflammatory cell infiltrate. Inflammation is not unique to the skin and contr- utes to disease and repair processes in other organ systems in the body. From the viewpoint of this volume, lung inflammation is...

Rubor (redness), tumor (swelling), calor (heat), and dolor (pain) are the classical signs of inflammation. These features are obvious in the skin, where injury or disease causes flare, wheal, and painful burning sensations. Vasodi- tation underlies the flare and heat, plasma exudation the swelling, and acti- tion of sensory nerves relays pain. In chronic conditions, skin biopsies show inflammatory cell infiltrate. Inflammation is not unique to the skin and contr- utes to disease and repair processes in other organ systems in the body. From the viewpoint of this volume, lung inflammation is...