The value of carcinoembryonic antigen in differentiating sclerosing epithelial hamartoma from syringoma

We examined 4 cases of sclerosing epithelial hamartoma for the presence of carcinoembryonic antigen (CEA) by the unlabelled antibody peroxidase-antiperoxidase method but could not detect CEA in these lesions. Because syringomas contain CEA, the detection of this antigen is a useful marker for differentiating sclerosing epithelial hamartomas from syringomas.