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The Schnitzler syndrome.

Dan Lipsker1

  • 1Clinique Dermatologique, Faculté de Médecine, Université de Strasbourg and Hôpitaux Universitaires, 1, place de l'hôpital, F-67091 Strasbourg cedex, France. dlipsker@gmail.com

Orphanet Journal of Rare Diseases
|December 15, 2010
PubMed
Summary
This summary is machine-generated.

Schnitzler syndrome, a rare acquired auto-inflammatory disease, presents with skin rash, IgM monoclonal protein, and systemic symptoms. Anakinra effectively controls symptoms but requires continuous daily treatment.

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Area of Science:

  • Rheumatology
  • Immunology
  • Dermatology

Background:

  • Schnitzler syndrome is a rare, underdiagnosed acquired auto-inflammatory disorder.
  • It is characterized by chronic urticarial rash, IgM monoclonal gammopathy, and systemic inflammatory signs.
  • The condition significantly impacts quality of life and can lead to severe complications like anemia and AA amyloidosis.

Purpose of the Study:

  • To provide a comprehensive overview of Schnitzler syndrome.
  • To discuss its clinical presentation, diagnostic criteria, and complications.
  • To highlight the therapeutic efficacy of anakinra and its implications.

Main Methods:

  • Review of existing literature and clinical case studies.
  • Analysis of diagnostic criteria and clinical manifestations.
  • Evaluation of treatment outcomes, particularly with anakinra.

Main Results:

  • Schnitzler syndrome associates urticarial rash, IgM monoclonal protein, and at least two systemic symptoms (fever, pain, organomegaly, elevated inflammatory markers).
  • Complications include inflammatory anemia, AA amyloidosis, and a 20% risk of lymphoproliferative disorders.
  • Anakinra, an IL-1 receptor antagonist, provides rapid and complete symptom control but necessitates continuous daily administration.

Conclusions:

  • Schnitzler syndrome is a distinct auto-inflammatory entity with significant morbidity.
  • Early diagnosis and treatment, particularly with anakinra, are crucial for managing symptoms and preventing complications.
  • The syndrome shares similarities with NLRP3 inflammasome-driven auto-inflammatory diseases, suggesting common pathogenic pathways.