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Article
June 1985

Atypical FibroxanthomaA Study With Antibody to S-100 Protein

Author Affiliations

From the Department of Dermatology, Mayo Clinic and Mayo Foundation, Rochester, Minn.

Arch Dermatol. 1985;121(6):753-755. doi:10.1001/archderm.1985.01660060067023
Abstract

• Fourteen biopsy specimens from ten patients with atypical fibroxanthoma were studied with the peroxidase-antiperoxidase method for binding of S-100 antibody. Six specimens from four patients were minimally positive. The S-100-positive cells were observed in greatest concentrations at the periphery of the lesions and were associated with perivascular inflammatory cells. By this method, it appears that there is not a Langerhans' cell type of atypical fibroxanthoma. The S-100 antibody can help differentiate desmoplastic juvenile melanoma and malignant melanoma from atypical fibroxanthoma.

(Arch Dermatol 1985;121:753-755)

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