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Lower Extremity Aneurysms
T. Gregory Walker, MD, FSIR
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KEY FACTS

  • Terminology

    • Imaging

      • Clinical Issues

        • Diagnostic Checklist

          TERMINOLOGY

          • Definitions

            • Aneurysm: Focal enlargement of vascular lumen
              • Due to intrinsic abnormality of arterial wall
                • All 3 layers of arterial wall remain intact
              • Also known as true aneurysm
            • Pseudoaneurysm: Contained leakage of blood from artery into adjacent soft tissues
              • Due to disruption of arterial wall integrity
                • Persistent communication between artery and pseudoaneurysm cavity
                • Does not contain normal arterial wall components
              • Also known as false aneurysm

          IMAGING

          • General Features

            • Ultrasonographic Findings

              • Angiographic Findings

                • CT Findings

                  • MR Findings

                    DIFFERENTIAL DIAGNOSIS

                      PATHOLOGY

                      • General Features

                        CLINICAL ISSUES

                        • Presentation

                          • Natural History & Prognosis

                            • Treatment

                              DIAGNOSTIC CHECKLIST

                              • Consider

                                • Image Interpretation Pearls

                                  Selected References

                                  1. Garg K et al: Outcome of endovascular repair of popliteal artery aneurysm using the Viabahn endoprosthesis. J Vasc Surg. 55(6):1647-53, 2012
                                  2. Pulli R et al: Comparison of early and midterm results of open and endovascular treatment of popliteal artery aneurysms. Ann Vasc Surg. 26(6):809-18, 2012
                                  3. Rico JV et al: Urgent endovascular treatment of a ruptured tibioperoneal pseudoaneurysm in Behçet's disease. Ann Vasc Surg. 25(3):385, 2011
                                  4. Moore RD et al: Open versus endovascular repair of popliteal artery aneurysms. J Vasc Surg. 51(1):271-6, 2010
                                  5. Davies RS et al: Long-term results of surgical repair of popliteal artery aneurysm. Eur J Vasc Endovasc Surg. 34(6):714-8, 2007
                                  6. Corriere MA et al: True and false aneurysms of the femoral artery. Semin Vasc Surg. 18(4):216-23, 2005
                                  7. Edgerton JR et al: Obliteration of femoral artery pseudoaneurysm by thrombin injection. Ann Thorac Surg. 74(4):S1413-5, 2002
                                  8. Marmorale A et al: Aneurysms of the infrapopliteal arteries. J R Coll Surg Edinb. 40(5):324-6, 1995
                                  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

                                          • Definitions

                                            • Aneurysm: Focal enlargement of vascular lumen
                                              • Due to intrinsic abnormality of arterial wall
                                                • All 3 layers of arterial wall remain intact
                                              • Also known as true aneurysm
                                            • Pseudoaneurysm: Contained leakage of blood from artery into adjacent soft tissues
                                              • Due to disruption of arterial wall integrity
                                                • Persistent communication between artery and pseudoaneurysm cavity
                                                • Does not contain normal arterial wall components
                                              • Also known as false aneurysm

                                          IMAGING

                                          • General Features

                                            • Ultrasonographic Findings

                                              • Angiographic Findings

                                                • CT Findings

                                                  • MR Findings

                                                    DIFFERENTIAL DIAGNOSIS

                                                      PATHOLOGY

                                                      • General Features

                                                        CLINICAL ISSUES

                                                        • Presentation

                                                          • Natural History & Prognosis

                                                            • Treatment

                                                              DIAGNOSTIC CHECKLIST

                                                              • Consider

                                                                • Image Interpretation Pearls

                                                                  Selected References

                                                                  1. Garg K et al: Outcome of endovascular repair of popliteal artery aneurysm using the Viabahn endoprosthesis. J Vasc Surg. 55(6):1647-53, 2012
                                                                  2. Pulli R et al: Comparison of early and midterm results of open and endovascular treatment of popliteal artery aneurysms. Ann Vasc Surg. 26(6):809-18, 2012
                                                                  3. Rico JV et al: Urgent endovascular treatment of a ruptured tibioperoneal pseudoaneurysm in Behçet's disease. Ann Vasc Surg. 25(3):385, 2011
                                                                  4. Moore RD et al: Open versus endovascular repair of popliteal artery aneurysms. J Vasc Surg. 51(1):271-6, 2010
                                                                  5. Davies RS et al: Long-term results of surgical repair of popliteal artery aneurysm. Eur J Vasc Endovasc Surg. 34(6):714-8, 2007
                                                                  6. Corriere MA et al: True and false aneurysms of the femoral artery. Semin Vasc Surg. 18(4):216-23, 2005
                                                                  7. Edgerton JR et al: Obliteration of femoral artery pseudoaneurysm by thrombin injection. Ann Thorac Surg. 74(4):S1413-5, 2002
                                                                  8. Marmorale A et al: Aneurysms of the infrapopliteal arteries. J R Coll Surg Edinb. 40(5):324-6, 1995