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[Synovial lipoma arborescens]

S Bouraoui1, S Haouet, H Mestiri

  • 1Laboratoire d'anatomie et de cytologie pathologiques, Hôpital La Rabta, Tunis.

Annales De Pathologie
|January 1, 1996
PubMed
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Synovial lipoma arborescens, a rare joint tumor, presents as a progressively enlarging mass. Surgical removal and histological examination confirmed this rare diagnosis in two patients.

Area of Science:

  • Orthopedics
  • Pathology

Background:

  • Synovial lipoma arborescens is an uncommon intra-articular tumor with an unknown etiology.
  • This condition involves villous lipomatous proliferation of the synovial membrane.

Observation:

  • Two cases are presented: a 41-year-old male and a 27-year-old female, both with progressively increasing joint swelling.
  • The first case also exhibited knee joint laxity.
  • Radiography and arthroscopy revealed significant synovial hyperplasia.

Findings:

  • Total synovectomy was performed in both patients.
  • The resected synovial tissue appeared villous, extremely thickened, and fatty upon section.
  • Histological examination confirmed synovial lipoma arborescens.
  • The significant volume, especially in the male patient, supports its tumoral nature.

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Implications:

  • This report highlights the tumoral characteristics of synovial lipoma arborescens, emphasizing its potential for significant mass effect.
  • Early diagnosis and surgical intervention are crucial for managing this rare condition.
  • Further research into the etiology of synovial lipoma arborescens is warranted.