Dermatofibromas are common benign fibrohistiocytic tumors that are most often solitary. The occurrence of multiple eruptive dermatofibromas (MEDF), on the contrary, is a rare event. MEDF have been reported in the setting of autoimmune diseases, treated with immunosuppressive drugs, in the course of HIV infection and in neoplastic diseases. An association with immunosuppression has led to the speculation that they are the result of an abortive immunoreactive process. Here, we describe a patient with Sézary syndrome and a patient with multiple IgA myeloma who developed MEDF. These associations have not been reported previously.
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