Bronchoalveolar lavage (BAL)


BAL differential
 cell count

   

BAL differential
lymphocytes

Alveolar
macrophages
93%

CD3+
65%
Neutrophils
2%

CD3+/HLA-RD+
36%
Lymphocytes
5%

CD4+
34%
Eosinophils
0%

CD8+
28%



CD4/CD8 ratio
1.21



CD15+/CD56+
1%



CD1a
1%

Conclusion
: Normal BAL except for a slightly reduced CD4/CD8 ratio
7/8