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[Synovial lipoma arborescens].

Alexandra Bernardo1, Miguel Bernardes, Iva Brito

  • 1Serviços de Reumatologia e de Radiologia Hospital de S. João, Porto.

Acta Medica Portuguesa
|June 9, 2005
PubMed
Summary

Lipoma arborescens is a rare joint condition causing painless swelling and fluid buildup. Magnetic resonance imaging is crucial for diagnosing this benign lesion, often treated with synovectomy.

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Area of Science:

  • Orthopedics
  • Radiology
  • Pathology

Context:

  • Lipoma arborescens is a rare intraarticular lesion of unknown cause.
  • It typically presents as painless swelling and recurrent joint effusions, most commonly in the knee.
  • Laboratory tests and synovial fluid analysis are usually normal.

Purpose:

  • To review the literature on lipoma arborescens.
  • To emphasize the diagnostic importance of magnetic resonance imaging (MRI).
  • To highlight lipoma arborescens in the differential diagnosis of chronic joint swelling.

Summary:

  • Lipoma arborescens is a rare, benign, intraarticular lesion characterized by villous lipomatous proliferation of the synovial membrane.
  • It commonly affects the knee, presenting with painless swelling and recurrent effusions, with normal laboratory findings.
  • Magnetic resonance imaging (MRI) is essential for accurate diagnosis, differentiating it from other joint pathologies.

Impact:

  • Enhances understanding of a rare joint condition.
  • Promotes earlier and more accurate diagnosis through MRI.
  • Improves patient management by including lipoma arborescens in differential diagnoses for chronic joint effusions.

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