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Related Experiment Video

Updated: May 30, 2026

$Autologous Microfractured and Purified Adipose Tissue for Arthroscopic Management of Osteochondral Lesions of the Talus$

Autologous Microfractured and Purified Adipose Tissue for Arthroscopic Management of Osteochondral Lesions of the Talus

Published on: January 23, 2018

[Synovial lipoma arborescens].

L T Finotti¹, D B Araújo, L F Vituli

¹Serviço de Reumatologia, Hospital do Servidor Público Estadual de São Paulo, Brazil.

Acta Reumatologica Portuguesa

|August 16, 2011

Summary

Synovial lipoma arborescens, a rare benign joint condition, can mimic osteoarthritis and rheumatoid arthritis. Accurate diagnosis relies on advanced imaging and histology to differentiate it from other inflammatory joint diseases.

Related Experiment Videos

Last Updated: May 30, 2026

$Autologous Microfractured and Purified Adipose Tissue for Arthroscopic Management of Osteochondral Lesions of the Talus$

Autologous Microfractured and Purified Adipose Tissue for Arthroscopic Management of Osteochondral Lesions of the Talus

Published on: January 23, 2018

Area of Science:

Orthopedics
Rheumatology
Pathology

Background:

Synovial lipoma arborescens is a rare, benign intra-articular condition characterized by villous lipomatous proliferation of synovial tissue.
Its etiology is unknown, and it often presents with atypical symptoms, commonly affecting the knee with recurrent effusions and painless swelling.

Observation:

A case study of a female patient with an 18-year history of knee pain initially diagnosed as osteoarthritis.
Clinical presentation included localized suprapatellar bursa enlargement without significant effusion, and ultrasonography suggested nodular synovitis.

Findings:

Synovial biopsy and histopathological review were initially inconclusive, raising suspicion for rheumatoid arthritis.
A comprehensive review integrating clinical, laboratory, magnetic resonance imaging (MRI), and histological data confirmed synovial lipoma arborescens.

Implications:

Magnetic resonance imaging is a highly specific diagnostic tool for synovial lipoma arborescens, potentially obviating the need for biopsy.
Accurate diagnosis is crucial for appropriate management, distinguishing this benign condition from inflammatory arthropathies like rheumatoid arthritis.