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Lipoma Arborescens
Eric Walker, MD, MHA, FACR, FACHE; Catherine C. Roberts, MD; B. J. Manaster, MD, PhD, FACR
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KEY FACTS

  • Terminology

    • Imaging

      • Pathology

        • Clinical Issues

          TERMINOLOGY

          • Synonyms

            • Diffuse synovial lipoma
            • Villous lipomatous proliferation of synovial membrane
            • Fatty reactive synovitis
          • Definitions

            • Infiltration of fat tissue in synovium and subsynovial tissue forming frond-like masses

          IMAGING

          • General Features

            • Radiographic Findings

              • CT Findings

                • MR Findings

                  • Ultrasonographic Findings

                    • Imaging Recommendations

                      DIFFERENTIAL DIAGNOSIS

                        PATHOLOGY

                        • General Features

                          • Gross Pathologic & Surgical Features

                            • Microscopic Features

                              CLINICAL ISSUES

                              • Presentation

                                • Demographics

                                  • Natural History & Prognosis

                                    • Treatment

                                      DIAGNOSTIC CHECKLIST

                                      • Consider

                                        • Image Interpretation Pearls

                                          Selected References

                                          1. Bui-Mansfield L: Lipoma arborescens: imaging features of typical and atypical disease and differentiation from other intra-articular pathology. Contemporary Diagnostic Radiology. (44):13, 2021. https://api.semanticscholar.org/CorpusID:235327215
                                          2. Huang Y et al: Imaging features of lipoma arborescens. Acta Radiol. ePub, 2021
                                          3. Batu ED et al: Lipoma arborescens associated with psoriatic arthritis in an adolescent boy: a case report and review of the literature. J Clin Rheumatol. 26(2):e47-9, 2020
                                          4. Wang CK et al: Knee arthroscopy for the treatment of lipoma arborescens: a systematic review of the literature. JBJS Rev. 7(4):e8, 2019
                                          5. de Souza TP et al: Primary lipoma arborescens of the knee. Eur J Rheumatol. 4(3):219-21, 2017
                                          6. Kransdorf MJ et al: Lipomatous tumors. In Kransdorf MJ et al: Imaging of Soft Tissue Tumors. 3rd ed. Lippincott Williams & Wilkins. 111-4, 2014
                                          7. White EA et al: Lipoma arborescens of the biceps tendon sheath. Skeletal Radiol. 42(10):1461-4, 2013
                                          8. Coll JP et al: Best cases from the AFIP: lipoma arborescens of the knees in a patient with rheumatoid arthritis. Radiographics. 31(2):333-7, 2011
                                          9. Chae EY et al: Lipoma arborescens of the glenohumeral joint causing bone erosion: MRI features with gadolinium enhancement. Skeletal Radiol. 38(8):815-8, 2009
                                          10. Vinson EN et al: Synovial lipomatosis arborescens of the peroneal tendon sheath. Skeletal Radiol. 37(10):947-50, 2008
                                          11. Weiss SW et al: Benign lipomatous tumors. In Weiss SW et al: Enzinger and Weiss' Soft Tissue Tumors. 5th ed. Elsevier. 458-9, 2008
                                          12. Murphey MD et al: From the archives of the AFIP: benign musculoskeletal lipomatous lesions. Radiographics. 24(5):1433-66, 2004
                                          13. Vilanova JC et al: MR imaging of lipoma arborescens and the associated lesions. Skeletal Radiol. 32(9):504-9, 2003
                                          Related Anatomy
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                                          Related Differential Diagnoses
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                                          References
                                          Tables

                                          Tables

                                          KEY FACTS

                                          • Terminology

                                            • Imaging

                                              • Pathology

                                                • Clinical Issues

                                                  TERMINOLOGY

                                                  • Synonyms

                                                    • Diffuse synovial lipoma
                                                    • Villous lipomatous proliferation of synovial membrane
                                                    • Fatty reactive synovitis
                                                  • Definitions

                                                    • Infiltration of fat tissue in synovium and subsynovial tissue forming frond-like masses

                                                  IMAGING

                                                  • General Features

                                                    • Radiographic Findings

                                                      • CT Findings

                                                        • MR Findings

                                                          • Ultrasonographic Findings

                                                            • Imaging Recommendations

                                                              DIFFERENTIAL DIAGNOSIS

                                                                PATHOLOGY

                                                                • General Features

                                                                  • Gross Pathologic & Surgical Features

                                                                    • Microscopic Features

                                                                      CLINICAL ISSUES

                                                                      • Presentation

                                                                        • Demographics

                                                                          • Natural History & Prognosis

                                                                            • Treatment

                                                                              DIAGNOSTIC CHECKLIST

                                                                              • Consider

                                                                                • Image Interpretation Pearls

                                                                                  Selected References

                                                                                  1. Bui-Mansfield L: Lipoma arborescens: imaging features of typical and atypical disease and differentiation from other intra-articular pathology. Contemporary Diagnostic Radiology. (44):13, 2021. https://api.semanticscholar.org/CorpusID:235327215
                                                                                  2. Huang Y et al: Imaging features of lipoma arborescens. Acta Radiol. ePub, 2021
                                                                                  3. Batu ED et al: Lipoma arborescens associated with psoriatic arthritis in an adolescent boy: a case report and review of the literature. J Clin Rheumatol. 26(2):e47-9, 2020
                                                                                  4. Wang CK et al: Knee arthroscopy for the treatment of lipoma arborescens: a systematic review of the literature. JBJS Rev. 7(4):e8, 2019
                                                                                  5. de Souza TP et al: Primary lipoma arborescens of the knee. Eur J Rheumatol. 4(3):219-21, 2017
                                                                                  6. Kransdorf MJ et al: Lipomatous tumors. In Kransdorf MJ et al: Imaging of Soft Tissue Tumors. 3rd ed. Lippincott Williams & Wilkins. 111-4, 2014
                                                                                  7. White EA et al: Lipoma arborescens of the biceps tendon sheath. Skeletal Radiol. 42(10):1461-4, 2013
                                                                                  8. Coll JP et al: Best cases from the AFIP: lipoma arborescens of the knees in a patient with rheumatoid arthritis. Radiographics. 31(2):333-7, 2011
                                                                                  9. Chae EY et al: Lipoma arborescens of the glenohumeral joint causing bone erosion: MRI features with gadolinium enhancement. Skeletal Radiol. 38(8):815-8, 2009
                                                                                  10. Vinson EN et al: Synovial lipomatosis arborescens of the peroneal tendon sheath. Skeletal Radiol. 37(10):947-50, 2008
                                                                                  11. Weiss SW et al: Benign lipomatous tumors. In Weiss SW et al: Enzinger and Weiss' Soft Tissue Tumors. 5th ed. Elsevier. 458-9, 2008
                                                                                  12. Murphey MD et al: From the archives of the AFIP: benign musculoskeletal lipomatous lesions. Radiographics. 24(5):1433-66, 2004
                                                                                  13. Vilanova JC et al: MR imaging of lipoma arborescens and the associated lesions. Skeletal Radiol. 32(9):504-9, 2003