| Histopathology | N (%) |
| Necrotizing Granuloma | 262 (76.2) |
| Non Necrotizing Granuloma | 41 (12) |
| Non Specific Inflammation | 31 (9) |
| Normal | 4 (1.1) |
| Inadequate | 6(1.7) |
| Microbiology | N (%) |
| Positive AFB stain of pleural Biopsy (N = 336) | 88 (25.5) |
| Positive Tb culture of pleural Biopsy (N = 209) | 114 (53.1) |