| Case | Postoperative cytology | Control of malignant cells | Amount of pleual effusion |
| 1 | Class IIIb | + | Reduction |
| 2 | Not performed | − | Unchanged |
| 3 | Class III | + | Reduction |
| 4 | Negative | + | Reduction |
| 5 | Positive | − | Unchanged |
| 6 | Positive | − | Reduction |
| 7 | Class V | − | Reduction |
| 8 | Negative | not evaluated | Not evaluated |
| 9 | Negative | + | Reduction |
| 10 | Class II | + | Reduction |
| 11 | Class III | − | Reduction |
| 12 | Negative | + | Reduction |
| 13 | Class V | − | Unchanged |
| 14 | Class IV | − | Reduction |