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POEMS syndrome: complex factors contributing to a delayed diagnosis. POEMS (polyneuropathy, organomegaly, endocrinopathy, monoclonal protein and skin changes) syndrome is a rare paraneoplastic syndrome due to an underlying plasma cell disorder. The chronically evolving nature of this syndrome and diverse clinical manifestations make it a challenging diagnosis, especially in the early stages of the disease. We present a case that illustrates well how these confounding factors can delay recognition of the disorder. We describe the presentation of some of the classical symptoms, and discuss how investigations can be optimised in order to fit together the clinical picture. Recent advances in the understanding of nerve conduction studies and electromyography in POEMS may help improve the early identification of this disease. This is of great importance, as early recognition and the initiation of appropriate treatment can reduce morbidity and mortality in POEMS.