| Macroscopy and microscopy of pleural fluid | Number | Frequency |
| Pleural fluid |
|
|
| Citrus yellow | 24 | 68.57% |
| Serohematic | 11 | 31.43% |
| Light criteria: |
|
|
| Exudate | 29 | 82.86% |
| Transudate | 6 | 17.14% |
| Malignant cells: |
|
|
| No | 22 | 62.86% |
| Yes | 13 | 37.14% |
| Pleural bacteriology: |
|
|
| Negative | 13 | 37.14% |
| Positive | 22 | 62.86% |
| Genexpert in pleural fluid: |
|
|
| Negative | 32 | 91.43% |
| Positive | 3 | 8.57% |