|
Lymph
|
Neutro
|
Eosino
|
Mast cells
|
Other features
|
Inflammatory diseases
|
IPF
|
+ |
+++ |
+ |
N |
|
PF-CTD
|
+ |
+ |
+ |
N |
Increased lymphocytes in early disease |
Cryptogenic organizing pneumonia
|
+ |
+ |
+ |
+/- |
Foamy macrophages; mixed pattern of increased cells characteristic; decreased CD4:CD8 ratio |
Eosinophilic pneumonia
|
+ |
N |
++++ |
|
|
Asbestosis
|
N |
++ |
+ |
N |
Ferruginous bodies |
Silica-exposed
|
+/- |
N |
N |
N |
Dust particles by polarized light microscopy |
Coal workers' pneumoconiosis
|
+ |
+ |
N |
N |
|
Aluminum potroom workers
|
N |
N |
N |
? |
+ LTT |
Granulomatous diseases
|
Sarcoidosis
|
++ |
N or + |
N |
N |
CD4/CD8 ≥2 |
Hypersensitivity pneumonitis
|
+++ |
N or + |
N |
+ |
CD4/CD8 <1 |
Chronic beryllium disease
|
+++ |
N or + |
N |
N |
+ LTT to beryllium salts |