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Characteristics of bronchoalveolar lavage (BAL) cell populations, median (range).
| Normal | Sarcoidosis | UIP | |
|---|---|---|---|
| Total cells × 106 | 11·2 (6·6–21·2) | 9·7 (8·1–21·7) | 18·4 (10·6–35·7) |
| Percentage of total BAL cells | |||
| Alveolar macrophages | 96·4 (88·2–100) | 72·7 (46·1–89·1) | 68·4 (41·1–74·9) |
| Lymphocytes | 1·5 (0–4·7) | 25·1 (11·0–53·7) | 4·1 (0·6–7·1) |
| Neutrophils | 1·9 (0–5·4) | 2·1 (0·6–2·7) | 25·2 (7·6–52·3) |
| Eosinophils | 0 | 0·9 (0–3·2) | 3·1 (1·1–4·5) |
UIP, usual interstitial pneumonia.
