Table 2.
Immunohistochemical data on diagnostic samples of mixed neuroendocrine non-neuroendocrine neoplasm
| Variable | Category | Number | % |
| Synaptophysin | |||
| Positive | 60 | 87.0 | |
| Negative | 0 | 0 | |
| NA | 9 | 13.0 | |
| Chromogranin A | |||
| Positive | 37 | 53.6 | |
| Negative | 16 | 23.2 | |
| NA | 16 | 23.2 | |
| CD56 | |||
| Positive | 26 | 37.7 | |
| Negative | 10 | 14.5 | |
| NA | 33 | 47.8 | |
| CK-20 | |||
| Positive | 22 | 31.9 | |
| Negative | 11 | 15.9 | |
| NA | 36 | 52.2 | |
| CK-7 | |||
| Positive | 24 | 34.7 | |
| Negative | 10 | 14.5 | |
| NA | 35 | 50.8 | |
| CDX-2 | |||
| Positive | 33 | 47.8 | |
| Negative | 4 | 5.8 | |
| NA | 32 | 46.4 |
Note: The sum of the percentages may not reach 100% due to rounding. NA: Not available.