Dermatomyofibroma



Dermatomyofibroma


David S. Cassarino, MD, PhD









Scanning magnification of a dermatomyofibroma shows a dermal-based, plaque-like spindle proliferation with overlying epidermal hyperplasia, similar to a dermatofibroma.






Higher magnification shows a proliferation of bland spindle cells arranged in fascicles, largely running parallel to the epidermis and associated with collagen trapping.


TERMINOLOGY


Synonyms



  • Plaque-like dermal fibromatosis


Definitions



  • Myofibroblastic tumor with many features similar to dermatofibroma


ETIOLOGY/PATHOGENESIS


Unknown



  • May be related to trauma in some cases


CLINICAL ISSUES


Epidemiology



  • Incidence



    • Rare tumor


  • Age



    • Usually occurs in young adults


  • Gender



    • M:F = 1:8

Jul 9, 2016 | Posted by in PATHOLOGY & LABORATORY MEDICINE | Comments Off on Dermatomyofibroma
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