EPO and monoclonal gammopathy: Among plasma cell neoplasms with a paraneoplastic syndrome where the diagnosis is based on clinical and imaging studies, the syndromes POEMS (polyneuropathy, organomegaly, endocrinopathy, monoclonal gammopathy and skin changes) and TEMPI (telangiectasia, erythrocytosis with elevated erythropoietin level, monoclonal gammopathy, perinephric fluid collection and intrapulmonary shunting) are defined entities in both classifications.