| No | type | Size | LPCAL | Pnx* | Pathological diagnosis | Final diagnosis |
| False negative | ||||||
| 1 | solid | 42 | 16.4 | (−) | lymphoid infiltration | adenocarcinoma |
| 2 | solid | 25 | 17 | (−) | fibrous tissue | metastasis |
| 3 | solid | 18.3 | 16.7 | (−) | inflammation | adenocarcinoma |
| Non-diagnostic for malignancy | ||||||
| 4 | solid | 41.1 | 39.4 | (−) | necrotic tissue with a few malignant cells | squamous cell carcinoma |