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| Simple anthracosis No (%) | Anthracofibrosis No (%) | Nonanthracotic No (%) | Total No (%) | |
| Acid fast bacilli a | 7 (17.5) | 10 (25) | 1 (2.5) | 18 (15) |
| Tubeculosis Granuloma a | 8 (20) | 7 (17.5) | 1 (2.5) | 16 (13.4) |
| Tuberculosis a | 10 (25) | 12 (30) | 2 (5) | 24 (20) |
| Upper lobe localization a | 29 (82) | 26 (81) | 12 (30) | 67 (55) |
| Cavity | 2 (5.7) | 1 (3) | 5 (12) | 8 (5) |
a P<0.05
