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LLF TB in nonresolving pneumonia in study cases diagnosed by bronchoscopic sampling techniques
| Nonresolving pneumonia cases suspicion of LLF TB (n = 60) | Positive yield | Negative yield |
|---|---|---|
| Bronchoscopy-guided bronchial wash | 18 | 42 |
| Bronchoscopy-guided BAL for Gene Xpert | 58 | 02 |
LLF TB: lower lung field tuberculosis.χ2=57.41, df=1, P < 0.00001.
