| cytomorphology |
at the time of onset |
recurrence |
| nuclear eccentricity |
+ |
+ |
| scattered |
+ |
+ |
| rosette formation |
+ |
+ |
| salt-and-pepper chromatin |
+ |
+ |
| inclusion bodies |
+ |
+ |
| papillary growth |
- |
+ |
| sheet-like cluster |
- |
+ |
| cell mitosis |
- |
+ |
| spindle cells |
- |
+ |
| Nucleolus |
- |
+ |
| Immunostaining |
|
|
| CD56 |
+ |
+ |
| Synaptophysin |
+ |
+ |
| ChromograninA |
+ |
- |
| MIB-1 index |
20% |
25% |
| CK19 |
+ |
+ |
|