Table 2.

Pathological diagnoses

Diagnosis	n
Specific	18 (44%)
Pneumocystis carinii pneumonia	4
Metastatic malignancy	3
Bacterial pneumonia	3
Fungal infection	2
Unusual interstitial pneumonitis	2
Hypersensitive pneumonitis	1
Mycobacterial tuberculosis	1
Cytomegalovirus pneumonitis	1
Metastatic calcification	1
Nonspecific	23 (56%)
Diffuse alveolar damage	12
Acute stage	2
Fibroproliferative stage	10
Fibrosis	4
Interstitial pneumonitis	3
Pulmonary edema	2
Nonspecific interstitial pneumonitis	1
Organizing pneumonia	1