Table 1 Immunohistochemical profiles of the two composite tumors
From: Composite Multifocal Basal Cell carcinoma and Precursor B Acute Lymphoblastic Leukemia: Case report
Marker | Basal cell carcinoma | Mature looking lymphocytes | Precursor B cell acute lymphoblastic leukemia |
|---|---|---|---|
BER EP4 | Diffusely Positive | Negative | Negative |
TdT | Negative | Negative | Diffusely Positive |
CD 10 | Diffusely Positive | Negative | Diffusely Positive |
CD 43 | Negative | Diffusely Positive | Diffusely Positive |
CD 79a | Negative | Negative | Diffusely Positive |
Bcl-2 | Negative | Diffusely Positive | Diffusely Positive |
LCA (CD 45) | Negative | Diffusely Positive | Diffusely Positive |
CD 34 | Negative | Negative | Diffusely Positive |
Myeloperioxidase | Negative | Negative | Negative |
CD 117 | Negative | Negative | Weakly Positive (<10%) |
CD 99 | Negative | Negative | Weakly Positive (<10%) |
CD 3 | Negative | Diffusely Positive | Negative |
CD 5 | Negative | Diffusely Positive | Negative |
CD 7 | Negative | Diffusely Positive | Negative |
Ki 67 index | 5% | 0% | 30–40% |