By Gary M. White, MD

Slowly-growing, firm, asymptomatic, papulonodules on the distal fingers of a woman over many years. dermatomyofibroma

The dermatomyofibroma represents a benign fibroblastic/myofibroblastic dermal neoplasm.


A solitary firm, slow-growing nodule or plaque about the shoulder, neck or trunk in an adolescent or young adult is characteristic. This benign proliferation may resemble a keloid, scar or morphea. The histologic differentiation from DFSP is important. DFSP stains with CD34 whereas dermatomyofibroma stains with actin.


Surgical excision is appropriate but not needed. In one study, despite marginal or incomplete excision in 17 cases, none of the cases recurred.


Dermatology Online Journal 17(6)


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