POEMS (Polyneuropathy, Organomegaly, Endocrinopathy, Monoclonal Protein, and Skin Changes): A Case Report of a Rare Paraneoplastic Syndrome.

POEMS (polyneuropathy, organomegaly, endocrinopathy, monoclonal protein, and skin changes) syndrome is a multisystem disorder. Peripheral neuropathy and monoclonal plasma cell disorder are the most common manifestations of POEMS. Although osteosclerotic or mixed sclerotic-lytic lesions are typical, osteolytic lesions are rarely encountered. We present a case of a 39-year-old male with a history of multiple endocrine disorders who presented with paresthesia, edema, and hyperpigmentation and was eventually diagnosed with POEMS syndrome. Patients with unexplained neuropathy should be evaluated for POEMS syndrome, especially when it is associated with other findings like endocrinopathy, organomegaly, skin changes, or edema.