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Avascular Necrosis
Umesh D. Oza, MD
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KEY FACTS

  • Terminology

    • Imaging

      • Clinical Issues

        • Diagnostic Checklist

          TERMINOLOGY

          • Abbreviations

            • Avascular necrosis (AVN)
          • Synonyms

            • Aseptic necrosis, bone infarct, osteonecrosis, osseous necrosis, ischemic necrosis
          • Definitions

            • Ischemic death of trabecular bone and marrow

          IMAGING

          • General Features

            • Nuclear Medicine Findings

              • Radiographic Findings

                • CT Findings

                  • MR 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

                                        Selected References

                                        1. Joshi JK et al: Role of nuclear medicine imaging in recognizing different causes of osteonecrosis of the jaw. Clin Nucl Med. 38(1):40-3, 2013
                                        2. Buchan CA et al: Imaging of postoperative avascular necrosis of the ankle and foot. Semin Musculoskelet Radiol. 16(3):192-204, 2012
                                        3. Lee GC et al: Are we evaluating osteonecrosis adequately? Int Orthop. 36(12):2433-9, 2012
                                        4. Sohn MH et al: F-18 FDG uptake in osteonecrosis mimicking bone metastasis on PET/CT images. Clin Nucl Med. 32(6):496-7, 2007
                                        Related Anatomy
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                                        Related Differential Diagnoses
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                                        References
                                        Tables

                                        Tables

                                        KEY FACTS

                                        • Terminology

                                          • Imaging

                                            • Clinical Issues

                                              • Diagnostic Checklist

                                                TERMINOLOGY

                                                • Abbreviations

                                                  • Avascular necrosis (AVN)
                                                • Synonyms

                                                  • Aseptic necrosis, bone infarct, osteonecrosis, osseous necrosis, ischemic necrosis
                                                • Definitions

                                                  • Ischemic death of trabecular bone and marrow

                                                IMAGING

                                                • General Features

                                                  • Nuclear Medicine Findings

                                                    • Radiographic Findings

                                                      • CT Findings

                                                        • MR 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

                                                                              Selected References

                                                                              1. Joshi JK et al: Role of nuclear medicine imaging in recognizing different causes of osteonecrosis of the jaw. Clin Nucl Med. 38(1):40-3, 2013
                                                                              2. Buchan CA et al: Imaging of postoperative avascular necrosis of the ankle and foot. Semin Musculoskelet Radiol. 16(3):192-204, 2012
                                                                              3. Lee GC et al: Are we evaluating osteonecrosis adequately? Int Orthop. 36(12):2433-9, 2012
                                                                              4. Sohn MH et al: F-18 FDG uptake in osteonecrosis mimicking bone metastasis on PET/CT images. Clin Nucl Med. 32(6):496-7, 2007