TABLE 3.
Pathologic Findings
| Usual interstitial pneumonia | n = 9 |
|---|---|
| Definite UIP | 5 |
| Probable UIP | 1 |
| Definite UIP with superimposed ALI | 2 |
| Indeterminate for UIPa | 1 |
| Acute lung injury | 5 |
|---|---|
| Persistent DAD or organizing ALI with fibrosis | 3 |
| Chronic bronchiolitis with organizing pneumonia | 2 |
| Other | 4 |
|---|---|
| Desquamative interstitial pneumonia | 1 |
| Acute and organizing bronchopneumonia | 1 |
| Mild nonspecific abnormalities of uncertain significance | 2 |
ALI = acute lung injury; DAD = diffuse alveolar damage; UIP = usual interstitial pneumonia
a
Indeterminate for UIP was the consensus diagnosis for a case classified as definite UIP by one reviewer and unclassifiable chronic fibrosing interstitial pneumonia by the other who included UIP and other patterns of fibrotic lung disease in the differential diagnosis.