A unique biphasic variant of cutaneous fibrous histiocytoma with a storiform pattern and intralesional pigmented melanocytes: "storiform melano-fibrous histiocytoma".
Dermatofibromas (cutaneous fibrous histiocytomas) are common cutaneous neoplasms of mesenchymal origin. They are often associated with epidermal hyperplasia and increased basal layer pigmentation. There have been reports of a spectrum of melanocytic lesions associated with dermatofibromas ranging from junctional nevi to malignant melanomas, some of which may be coincidentally associated. We report a case of a long-standing storiform fibrohistiocytic lesion devoid of cytological atypia, lackin...Expand abstract
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