The development of skin cancer in black persons is rare, and basal cell epitheliomas are the most uncommon. Eight tumors were evaluated by routine histochemistry examination and immunoperoxidase staining for carcinoembryonic antigen (CEA). Our results demonstrate that half these tumors showed a positive reaction to this antigen, supporting the adnexal origin/differentiation of these lesions. Sixteen (16/18) similar tumors from white patients failed to show equivalent features. In addition, some of these CEA-positive tumors seem to demonstrate less aggressive behavior.
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