Mieloma múltiple en pacientes con lupus eritematoso sistémico: presentación de dos casos / Multiple myeloma in systemic lupus erythematosus: report of two cases

There is an increased incidence of hematological malignancies, particularly non-Hodgkin lymphoma (NHL) in systemic lupus erythematosus (SLE). In contrast, the concurrence with Multiple Myeloma (MM) is very rare, and the possible pathogenetic mechanisms underlying this association remain unclear. We report two patients who developed MM 15 and four years after being diagnosed as having SLE.