lung and airway disorders
Cryptogenic Organizing Pneumonia
Introduction
Cryptogenic organizing pneumonia is a rapidly developing idiopathic interstitial pneumonia characterized by lung inflammation and scarring that obstructs the small airways (bronchioles) and air sacs of the lungs (alveoli). (See also Overview of Idiopathic Interstitial Pneumonias .) The disease usually begins between the ages of 40 and 60 years and affects men and women equally. Cigarette smoking does not appear to increase the risk of developing cryptogenic organizing pneumonia. Almost 75% of people have progressively worsening cough and shortness of breath upon exertion, typically for less than 2 months before seeking medical attention. A flu-like illness, with a cough, fever, a feeling of illness (malaise), fatigue, and weight loss, heralds the onset in about 50% of people. 