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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%