Cryptogenic Organizing Pneumonia

King, Talmadge E. Jr. M.D.
Lee, Joyce S. M.D.

From the University of California, San Francisco (T.E.K.); and the University of Colorado Anschutz Medical Campus, Aurora (J.S.L.).

Dr. King can be contacted at [email protected] or at the School of Medicine, University of California San Francisco, 513 Parnassus Ave., Box 0410, San Francisco, CA 94143.

Disclosure forms provided by the authors are available with the full text of this article at NEJM.org.

Darren B. Taichman, M.D., Ph.D., Editor

New England Journal of Medicine 386(11):p 1058-1069, March 17, 2022. | DOI: 10.1056/NEJMra2116777

Cryptogenic Organizing Pneumonia

COP (formerly bronchiolitis obliterans organizing pneumonia) causes respiratory symptoms, with pulmonary infiltrates that usually respond well to therapy, but it is often misdiagnosed. This review discusses the pathobiology, diagnosis, and treatment of COP.