POEMS syndrome pathophysiology

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]

Pathophysiology

While the main features of the disease have been described, the exact mechanism of the disease has remained elusive. The paraprotein alone is insufficient to explain the multi-organ features, and various cytokines produced by plasmacytoma cells have therefore been linked with the features of POEMS syndrome, specifically interleukin 1β, interleukin 6 and TNFα. There also seems to be a role of vascular endothelial growth factor, given the angiogenetic changes in many tissues.