The pathologic findings of a sclerotic fibroma of the skin may resemble tho
se of other benign cutaneous lesions. In this report, the sequential pathol
ogic changes of a recurrent sclerotic fibroma of the skin during a period o
f 7 years are documented. As the lesion became older, there was not only a
decrease in cellularity, but also a progressive organization of the collage
n bundles toward a "plywood-like" appearance.