SCLEROTIC FIBROMA - A FOSSIL NO LONGER

We report on a patient with a sclerotic fibroma that recurred 30 month s after initial removal. The histologic features were characteristic, and immunoperoxidase stains using primary antibodies directed against cell proliferation markers were positive in a significant proportion o f the neoplastic nuclei. A review of the literature identified one oth er sclerotic fibroma that persisted. These clinical and light microsco pic features support the interpretation that sclerotic fibroma is a pr oliferating neoplasm with an unusual histologic pattern, rather than t he end-stage of a process that was formerly more cellular. We advocate use of sclerotic fibroma as the preferred diagnostic term.