Table 2.
CDKN2A copy number | p16 IHC expressiona | |||
---|---|---|---|---|
Epithelium | Stroma | Epithelium | Stroma | |
Benign Brenner tumors | ||||
1 | Disomy | Disomy | Diffuse | Focal |
2 | Disomy | Disomy | Diffuse | Focal |
3 | Disomy | Disomy | Diffuse | Focal |
4 | Disomy | Disomy | Patchy | Focal |
5 | Disomy | Disomy | Patchy | Focal |
6 | Disomy | Disomy | Patchy | Focal |
7 | Disomy | Disomy | Diffuse | Focal |
8 | Disomy | Disomy | Diffuse | Focal |
9 | Disomy | Disomy | Diffuse | Focal |
10 | Disomy | Disomy | Diffuse | Focal |
11 | Disomy | Disomy | Diffuse | Focal |
12 | Disomy | Disomy | Diffuse | Focal |
13 | Disomy | Disomy | Negative | Focal |
Atypical proliferative Brenner tumors | ||||
1 | Homozygous deletion | Disomy | Negative | Focal |
2 | Homozygous deletion | Disomy | Negative | Focal |
3 | Homozygous deletion | Disomy | Negative | Focal |
4 | Homozygous deletion | Disomy | Negative | Focal |
5 | Homozygous deletion | Disomy | Negative | Focal |
6 | Homozygous deletion | Disomy | Negative | Focal |
7 | Homozygous deletion | Disomy | Negative | Focal |
Abbreviation: IHC, immunohistochemical.
p16 IHC expression is both cytoplasmic and nuclear.