title: Polycythaemia: an unusual presentation of multiple myeloma.
abstract: In contrast to anaemia, polycythaemia is a distinctly uncommon finding in patients with multiple myeloma. We describe the presence of otherwise unexplained polycythaemia in a 57-year-old Caucasian man who was found to have IgG κ multiple myeloma. After treatment of myeloma, the polycythaemia resolved. We reviewed previous reports of polycythaemia associated with multiple myeloma and discuss potential pathophysiological mechanisms that link these 2 conditions.
authors.affiliation: Department of Medicine, University of Arizona College of Medicine, Tucson, Arizona, USA.
authors.forename: Elaine J
authors.initials: EJ
authors.lastname: Hutchison
authors.affiliation: Department of Medicine, University of Arizona College of Medicine, Tucson, Arizona, USA University of Arizona Cancer Center, Tucson, Arizona, USA.
authors.forename: Josephine A
authors.initials: JA
authors.lastname: Taverna
authors.affiliation: Department of Medicine, University of Arizona College of Medicine, Tucson, Arizona, USA.
authors.forename: Qi
authors.initials: Q
authors.lastname: Yu
authors.affiliation: Department of Medicine, University of Arizona College of Medicine, Tucson, Arizona, USA University of Arizona Cancer Center, Tucson, Arizona, USA.
authors.forename: Andrew M
authors.initials: AM
authors.lastname: Yeager
mesh_terms: D000970:Antineoplastic Agents / Q000627:therapeutic use*; D000069286:Bortezomib / Q000627:therapeutic use*; D003937:Diagnosis, Differential; D006801:Humans; D008297:Male; D008875:Middle Aged; D009101:Multiple Myeloma / Q000150:complications* / Q000188:drug therapy / Q000473:pathology; D010257:Paraneoplastic Syndromes / Q000188:drug therapy*; D011086:Polycythemia / Q000188:drug therapy / Q000209:etiology* / Q000473:pathology; D016896:Treatment Outcome
chemical_list: D000970:Antineoplastic Agents; D000069286:Bortezomib