Table 1: Compares this case study to immunohistochemistry stains expected in basal cell carcinoma and its potential histological mimics.
Current Case |
Basal Cell Carcinoma |
Trichoepithelioma |
Squamous Cell Carcinoma |
Merkel Cell Carcinoma |
Tumor of Follicular Infundibulum |
|
Ber-EP4 |
+ |
+ |
- |
- |
+ |
- |
CD10 |
+, basaloid |
+, basaloid |
+, stromal |
+, stromal |
- |
+, stromal |
BCL2 |
+, diffuse |
+, diffuse |
+, outer layer |
- |
+ |
- |
CK20 |
- |
- |
+ |
- |
+ |
- |
CD34 |
- |
- |
+ |
- |
- |
+ |