Table 5.
Immunohistochemical features of carcinomas among four subgroups.
| Antibodies | Older Type A (1) |
Older Type B (2) |
Younger Type A (3) |
Younger Type B |
p-Value (1) vs. (2)/(1) vs. (3) |
|---|---|---|---|---|---|
| n = 9 +/− |
n = 12 +/− |
n = 14 +/− |
n = 2 +/− |
||
| GCDFP-15 | 7/2 | 11/1 | 2/12 | 0/2 | 0.553/0.007 |
| CGA | 4/5 | 3/9 | 6/8 | 2/0 | 0.397/1.000 |
| SYP | 6/3 | 7/5 | 3/11 | 2/0 | 1.000/0.077 |
| CD56 | 3/6 | 5/7 | 2/12 | 1/1 | 1.000/0.343 |
| AR | 8/0 | 10/0 | 14/0 | 1/1 | 1.000/1.000 |
| ER | 9/0 | 12/0 | 14/0 | 2/0 | 1.000/1.000 |
| PgR | 8/1 | 10/2 | 12/2 | 1/1 | 1.000/1.000 |
| HER2 | 0/9 | 0/12 | 1/13 | 0/2 | 1.000/1.000 |
| Ki-67 | 1/8 | 3/9 | 4/10 | 2/0 | 0.603/0.611 |
p-values were calculated using Fisher’s exact test. AR: androgen receptor; CGA: chromogranin A; ER: estrogen receptor; GCDFP-15: gross cystic disease fluid protein-15; HER2: human epidermal growth receptor 2; PgR: progesterone receptor; SYP: synaptophysin.