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POEMS Syndrome.

Angela Dispenzieri1

  • 1Division of Hematology and Internal Medicine, Mayo Clinic, Rochester, MN 55905, USA. dispenzieri.angela@mayo.edu

Hematology. American Society of Hematology. Education Program
|November 24, 2005
PubMed
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POEMS syndrome, a rare plasma cell disorder, presents with neuropathy and other symptoms. Early diagnosis is crucial as standard treatments for similar conditions are ineffective, requiring specialized therapies like radiation or chemotherapy.

Area of Science:

  • Hematology
  • Neurology
  • Oncology

Background:

  • POEMS syndrome is a rare multisystem disorder characterized by peripheral neuropathy, monoclonal plasma cell disorder, and various paraneoplastic features.
  • Common features include organomegaly, endocrinopathy, skin changes, papilledema, edema, effusions, ascites, and thrombocytosis, with sclerotic bone lesions or Castleman's disease often present.
  • Misdiagnosis as chronic inflammatory demyelinating polyneuropathy (CIDP) or monoclonal gammopathy of undetermined significance (MGUS)-associated neuropathy is frequent due to overlapping symptoms.

Purpose of the Study:

  • To highlight the diagnostic challenges and importance of early recognition of POEMS syndrome.
  • To differentiate POEMS syndrome from conditions like CIDP and MGUS-associated neuropathy.
  • To outline effective therapeutic strategies for POEMS syndrome.

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Main Methods:

  • Review of clinical features and diagnostic criteria for POEMS syndrome.
  • Comparison of POEMS syndrome presentation with CIDP and MGUS-associated neuropathy.
  • Analysis of treatment outcomes for POEMS syndrome.

Main Results:

  • POEMS syndrome requires specific diagnostic criteria beyond just neuropathy.
  • Early diagnostic clues include thrombocytosis and sclerotic bone lesions.
  • Standard treatments for CIDP/MGUS-associated neuropathy (IVIg, plasmapheresis) are ineffective for POEMS syndrome.

Conclusions:

  • Early and accurate diagnosis of POEMS syndrome is essential to avoid ineffective treatments and reduce patient morbidity.
  • Effective therapies for POEMS syndrome include irradiation, corticosteroids, and alkylator-based chemotherapy, potentially including stem cell transplantation.
  • Distinguishing POEMS syndrome from other neuropathies is critical for appropriate management.