| Case | Pathological diagnosis | Grade | LVI | Ki-67 | ER | PgR | HER2 | Synop. | Chrom. | NSE |
| 1 | IDC with neuroendocrine differentiation | II | − | − | + | + | 1+ | + | − | − |
| 2 | IDC with neuroendocrine differentiation | I | + | − | + | + | 1+ | + | − | − |
| 3 | IDC with neuroendocrine differentiation | II | + | − | + | + | − | + | − | − |
| 4 | IDC with neuroendocrine differentiation | I | − | 24% | + | + | 1+ | − | + | − |
| 5 | Small cell carcinoma | III | − | 60% | − | − | − | − | − | + |
| 6 | IDC with neuroendocrine differentiation | I | − | 5% | + | + | 3+ | + | + | − |
| 7 | IDC with neuroendocrine ca+ mucinous ca | III | − | 37% | + | + | 1+ | + | + | − |
| 8 | IDC with neuroendocrine differentiation | II | − | 96% | + | + | − | + | − | − |