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Lipoma: Soft Tissue
Catherine C. Roberts, MD; B.J. Manaster, MD, PhD, FACR
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KEY FACTS

  • Terminology

    • Imaging

      • Diagnostic Checklist

        TERMINOLOGY

        • Definitions

          • Benign lipomatous tumor, representing almost 50% of soft tissue masses

        IMAGING

        • General Features

          • Radiographic Findings

            • CT Findings

              • MR Findings

                • Imaging Recommendations

                  • Ultrasonographic Findings

                    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

                                        • Reporting Tips

                                          Selected References

                                          1. Brisson M et al: MRI characteristics of lipoma and atypical lipomatous tumor/well-differentiated liposarcoma: retrospective comparison with histology and MDM2 gene amplification. Skeletal Radiol. 42(5):635-47, 2013
                                          2. Khashper A et al: Imaging characteristics of spindle cell lipoma and its variants. Skeletal Radiol. 43(5):591-7, 2014
                                          3. Kirwadi A et al: MR imaging features of spindle cell lipoma. Skeletal Radiol. 43(2):191-6, 2014
                                          4. Bidault F et al: Liposarcoma or lipoma: does genetics change classic imaging criteria? Eur J Radiol. 72(1):22-6, 2009
                                          5. Weiss SW et al: Benign lipomatous tumors. In Weiss SW et al: Enzinger and Weiss' Soft Tissue Tumors. 5th ed. Philadelphia: Elsevier. 431-6, 2008
                                          6. Bancroft LW et al: Benign fatty tumors: classification, clinical course, imaging appearance, and treatment. Skeletal Radiol. 35(10):719-33, 2006
                                          7. Kransdorf MJ et al: Lipomatous tumors. In Kransdorf MJ et al: Imaging of Soft Tissue Tumors. 2nd ed. Philadelphia: Lippincott Williams & Wilkins. 81-4, 2006
                                          8. Murphey MD et al: From the archives of the AFIP: benign musculoskeletal lipomatous lesions. Radiographics. 24(5):1433-66, 2004
                                          9. Kransdorf MJ et al: Imaging of fatty tumors: distinction of lipoma and well-differentiated liposarcoma. Radiology. 224(1):99-104, 2002
                                          Related Anatomy
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                                          Related Differential Diagnoses
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                                          References
                                          Tables

                                          Tables

                                          KEY FACTS

                                          • Terminology

                                            • Imaging

                                              • Diagnostic Checklist

                                                TERMINOLOGY

                                                • Definitions

                                                  • Benign lipomatous tumor, representing almost 50% of soft tissue masses

                                                IMAGING

                                                • General Features

                                                  • Radiographic Findings

                                                    • CT Findings

                                                      • MR Findings

                                                        • Imaging Recommendations

                                                          • Ultrasonographic Findings

                                                            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

                                                                                • Reporting Tips

                                                                                  Selected References

                                                                                  1. Brisson M et al: MRI characteristics of lipoma and atypical lipomatous tumor/well-differentiated liposarcoma: retrospective comparison with histology and MDM2 gene amplification. Skeletal Radiol. 42(5):635-47, 2013
                                                                                  2. Khashper A et al: Imaging characteristics of spindle cell lipoma and its variants. Skeletal Radiol. 43(5):591-7, 2014
                                                                                  3. Kirwadi A et al: MR imaging features of spindle cell lipoma. Skeletal Radiol. 43(2):191-6, 2014
                                                                                  4. Bidault F et al: Liposarcoma or lipoma: does genetics change classic imaging criteria? Eur J Radiol. 72(1):22-6, 2009
                                                                                  5. Weiss SW et al: Benign lipomatous tumors. In Weiss SW et al: Enzinger and Weiss' Soft Tissue Tumors. 5th ed. Philadelphia: Elsevier. 431-6, 2008
                                                                                  6. Bancroft LW et al: Benign fatty tumors: classification, clinical course, imaging appearance, and treatment. Skeletal Radiol. 35(10):719-33, 2006
                                                                                  7. Kransdorf MJ et al: Lipomatous tumors. In Kransdorf MJ et al: Imaging of Soft Tissue Tumors. 2nd ed. Philadelphia: Lippincott Williams & Wilkins. 81-4, 2006
                                                                                  8. Murphey MD et al: From the archives of the AFIP: benign musculoskeletal lipomatous lesions. Radiographics. 24(5):1433-66, 2004
                                                                                  9. Kransdorf MJ et al: Imaging of fatty tumors: distinction of lipoma and well-differentiated liposarcoma. Radiology. 224(1):99-104, 2002