title: Endocrinopathy in POEMS syndrome: the Mayo Clinic experience.
abstract: OBJECTIVE
  To determine the prevalence and characteristics of endocrinopathies at diagnosis of POEMS (polyneuropathy, organomegaly, endocrinopathy, M protein, and skin changes) syndrome.
  
  
  METHODS
  From January 1, 1960, through June 30, 2006, we identified 170 patients with POEMS syndrome in the Mayo Clinic dysproteinemia database. We abstracted information about endocrine abnormalities from their medical records.
  
  
  RESULTS
  Of the 170 patients with POEMS syndrome during the entire study period, the 64 patients seen after 2000 had more complete endocrine evaluations; of these 64 patients, 54 (84%) had a recognized endocrinopathy (38 men; median age, 50 years; interquartile range, 43-59 years). Hypogonadism was the most common endocrine abnormality; 26 (79%) of 33 men had subnormal total testosterone levels, and 10 men had gynecomastia. Among the 35 patients with measured prolactin levels, 7 men and 3 women had elevated levels. Hypothyroidism was noted in 17 men and 11 women. Abnormalities in glucose metabolism were present in 24 (48%) of 50 patients; 16 patients had impaired fasting glucose levels, and 8 were diagnosed as having diabetes. Adrenal insufficiency (defined by an abnormal response of cortisol to stimulation with standard high-dose [250 microg] synthetic adrenocorticotropic hormone) was noted in 6 of 9 patients tested. Fourteen (27%) of 51 patients tested had hypocalcemia. Twenty-nine (54%) of 54 patients had evidence of multiple endocrinopathies in the 4 major endocrine axes (gonadal, thyroid, glucose, and adrenal).
  
  
  CONCLUSIONS
  The high prevalence of endocrinopathy in our study, to our knowledge the largest published series of POEMS cases, calls for a thorough endocrine investigation in patients presenting with this syndrome.
authors.affiliation: Division of Endocrinology, Diabetes, Metabolism, and Nutrition, Mayo Clinic, 200 First St SW, Rochester, MN 55905, USA. gandhi.gunjan@mayo.edu
authors.forename: Gunjan Y
authors.initials: GY
authors.lastname: Gandhi
authors.forename: Rita
authors.initials: R
authors.lastname: Basu
authors.forename: Angela
authors.initials: A
authors.lastname: Dispenzieri
authors.forename: Ananda
authors.initials: A
authors.lastname: Basu
authors.forename: Victor M
authors.initials: VM
authors.lastname: Montori
authors.forename: Michael D
authors.initials: MD
authors.lastname: Brennan
mesh_terms: D000328:Adult; D004700:Endocrine System Diseases / Q000175:diagnosis / Q000453:epidemiology / Q000503:physiopathology*; D005260:Female; D006801:Humans; D006966:Hyperprolactinemia / Q000453:epidemiology; D007006:Hypogonadism / Q000453:epidemiology; D008297:Male; D008875:Middle Aged; D016878:POEMS Syndrome / Q000175:diagnosis / Q000453:epidemiology / Q000503:physiopathology*; D015995:Prevalence