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Bronchoalveolar lavage (BAL): differential cell count, total cell count, percentage of CD4+, CD8+ and CD25+ lymphocytes (CD3+), and CD4/CD8 ratio
| BAL | Total cell count (× 106 cells) | Lymphocytes | CD4+ cells (%) | CD4/8 | CD25+ cells (%) |
|---|---|---|---|---|---|
| Controls | 6·9 ± 3·14 × 106 | 14·7 ± 6·4% | 53·4 ± 12·4% | 2·2 ± 0·9 | 7·3 ± 1·3% |
| Patients with sarcoidosis | 15·4 ± 7·85 × 106 | 40·3 ± 16·3% | 64·3 ± 17·8% | 3·1 ± 2·0 | 13·4 ± 5·1% |
