RT Journal Article SR Electronic T1 Diffuse alveolar hemorrhage: Diagnosing it and finding the cause JF Cleveland Clinic Journal of Medicine JO Cleve Clin J Med FD Cleveland Clinic SP 258 OP 280 VO 75 IS 4 A1 Octavian C. Ioachimescu A1 James K. Stoller YR 2008 UL http://www.ccjm.org/content/75/4/258.abstract AB Diffuse alveolar hemorrhage is an acute, life-threatening event, and repeated episodes can lead to organizing pneumonia, collagen deposition in small airways, and, ultimately, fibrosis. Among the many conditions it can accompany are Wegener granulomatosis, microscopic polyangiitis, Goodpasture syndrome, connective tissue disorders, antiphospholipid antibody syndrome, infectious or toxic exposures, and neoplastic conditions. Its many causes and presentations pose an important challenge to the clinician.