Table 4.
Mitotic activity and Ki-67 immunoreactivity of gangliocytic paraganglioma
| Epithelioid cells | Spindle-shaped cells | Ganglion-like cells | ||||
|---|---|---|---|---|---|---|
| cases | Mitotic activity | Ki-67 immunoreactivity | Mitotic activity | Ki-67 immunoreactivity | Mitotic activity | Ki-67 immunoreactivity |
| 1 | 0 / 1289 | 7 / 1289 (0.54%) | 0 / 1041 | 3 / 1041 (0.29%) | 0 / 4 | 0 / 4 (0.00%) |
| 2 | 0 / 1097 | 5 / 1097 (0.46%) | 0 / 1189 | 4 / 1189 (0.34%) | 0 / 4 | 0 / 4 (0.00%) |
| 3 | 0 / 1403 | 6 / 1403 (0.43%) | 0 / 1349 | 2 / 1349 (0.15%) | 0 / 103 | 0 / 103 (0.00%) |
| 4 | 0 / 1213 | 5 / 1213 (0.41%) | 0 / 1001 | 6 / 1001 (0.60%) | 0/ 7 | 0/ 7 (0.00%) |
| 5 | 0 / 1043 | 4 / 1043 (0.38%) | 0 / 1076 | 3 / 1076 (0.28%) | 0 / 4 | 0/ 4 (0.00%) |
| 6 | 0 / 1128 | 9 / 1128 (0.80) % | 0 / 1007 | 2 / 1007 (0.20%) | 0 / 31 | 0 / 31 (0.00%) |
| 7 | 0 / 1343 | 4 / 1343 (0.30%) | 0 / 1192 | 3 / 1192 (0.25%) | 0/ 38 | 0/ 38 (0.00%) |
| 8 | 0 / 1021 | 3 / 1021 (0.29%) | 0 / 1165 | 3 / 1165 (0.26%) | 0 / 71 | 0 / 71 (0.00%) |
| 9 | 0 / 1321 | 3 / 1321 (0.23%) | 0 / 1063 | 2 / 1063 (0.28%) | 0 / 48 | 0 / 48 (0.00%) |
| 10 | 0 / 1081 | 2 / 1081 (0.19%) | 0 / 1288 | 1 / 1288 (0.08%) | 0 / 46 | 0 / 46 (0.00%) |
| 11 | 0 / 1013 | 1 / 1013 (0.10%) | 0 / 1362 | 11 / 1362 (0.81%) | 0 / 12 | 0 / 12 (0.00%) |
| 12 | 0 / 1111 | 1 / 1111 (0.09%) | 0 / 1111 | 1 / 1141 (0.09%) | 0/ 14 | 0/ 14 (0.00%) |
Legend: In the present study, epithelioid, spindle-shaped, and ganglion-like cells showed no mitotic activity. In addition, the Ki-67 labeling index of them ranged from 0.09 to 0.80%, 0.08 to 0.81%, and 0.00%, respectively.