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Iliac Artery Aneurysmal Disease
George R. Oliveira, MD
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KEY FACTS

  • Terminology

    • Imaging

      • Clinical Issues

        TERMINOLOGY

        • Definitions

          • Iliac artery aneurysm: Focal or diffuse dilatation > 1.5x normal respective iliac artery diameter
            • Regarded as aneurysmal if ≥ 25 mm in diameter
          • Fusiform aneurysm: Diffusely and circumferentially involves lengthy arterial segment
          • Saccular aneurysm: Focally involves arterial segment; appears as focal outpouching or bulge
          • True aneurysm contains all 3 arterial wall layers
            • Most commonly due to atherosclerosis
          • False aneurysm (pseudoaneurysm) does not contain all 3 layers of arterial wall
            • Focal or diffuse disruption of arterial wall
            • Causes include iatrogenic or penetrating trauma, contained rupture, vascular infection (mycotic)

        IMAGING

        • General Features

          • Imaging Recommendations

            • CT Findings

              • MR Findings

                • Angiographic Findings

                  • Ultrasonographic Findings

                    DIFFERENTIAL DIAGNOSIS

                      PATHOLOGY

                      • General Features

                        CLINICAL ISSUES

                        • Presentation

                          • Demographics

                            • Natural History & Prognosis

                              • Treatment

                                Selected References

                                1. Fossaceca R et al: Long-term efficacy of endovascular treatment of isolated iliac artery aneurysms. Radiol Med. 118(1):62-73, 2013
                                2. Parlani G et al: Long-term results of iliac aneurysm repair with iliac branched endograft: a 5-year experience on 100 consecutive cases. Eur J Vasc Endovasc Surg. 43(3):287-92, 2012
                                3. Melas N et al: Isolated common iliac artery aneurysms: a revised classification to assist endovascular repair. J Endovasc Ther. 18(5):697-715, 2011
                                4. Chemelli A et al: Endovascular repair of isolated iliac artery aneurysms. J Endovasc Ther. 17(4):492-503, 2010
                                5. Dorigo W et al: The Treatment of Isolated Iliac Artery Aneurysm in Patients with Non-aneurysmal Aorta. Eur J Vasc Endovasc Surg. 2008
                                6. Gabrielli R et al: Classic and endovascular surgical management of isolated iliac artery aneurysms. Minerva Cardioangiol. 55(2):133-48, 2007
                                7. Laganà D et al: Endovascular treatment of isolated iliac artery aneurysms: 2-year follow-up. Radiol Med (Torino). 112(6):826-36, 2007
                                8. Mofidi R et al: Endovascular repair of a ruptured mycotic aneurysm of the common iliac artery. Cardiovasc Intervent Radiol. 30(5):1029-32, 2007
                                9. Pitoulias GA et al: Isolated iliac artery aneurysms: endovascular versus open elective repair. J Vasc Surg. 46(4):648-54, 2007
                                10. Stroumpouli E et al: The endovascular management of iliac artery aneurysms. Cardiovasc Intervent Radiol. 30(6):1099-104, 2007
                                11. van Kelckhoven BJ et al: Ruptured internal iliac artery aneurysm: staged emergency endovascular treatment in the interventional radiology suite. Cardiovasc Intervent Radiol. 30(4):774-7, 2007
                                12. Boules TN et al: Endovascular management of isolated iliac artery aneurysms. J Vasc Surg. 44(1):29-37, 2006
                                13. Tielliu IF et al: Endovascular treatment of iliac artery aneurysms with a tubular stent-graft: mid-term results. J Vasc Surg. 43(3):440-5, 2006
                                14. Dix FP et al: The isolated internal iliac artery aneurysm--a review. Eur J Vasc Endovasc Surg. 30(2):119-29, 2005
                                15. Sakamoto I et al: Endovascular treatment of iliac artery aneurysms. Radiographics. 25 Suppl 1:S213-27, 2005
                                16. Sandhu RS et al: Isolated iliac artery aneurysms. Semin Vasc Surg. 18(4):209-15, 2005
                                Related Anatomy
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                                Related Differential Diagnoses
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                                References
                                Tables

                                Tables

                                KEY FACTS

                                • Terminology

                                  • Imaging

                                    • Clinical Issues

                                      TERMINOLOGY

                                      • Definitions

                                        • Iliac artery aneurysm: Focal or diffuse dilatation > 1.5x normal respective iliac artery diameter
                                          • Regarded as aneurysmal if ≥ 25 mm in diameter
                                        • Fusiform aneurysm: Diffusely and circumferentially involves lengthy arterial segment
                                        • Saccular aneurysm: Focally involves arterial segment; appears as focal outpouching or bulge
                                        • True aneurysm contains all 3 arterial wall layers
                                          • Most commonly due to atherosclerosis
                                        • False aneurysm (pseudoaneurysm) does not contain all 3 layers of arterial wall
                                          • Focal or diffuse disruption of arterial wall
                                          • Causes include iatrogenic or penetrating trauma, contained rupture, vascular infection (mycotic)

                                      IMAGING

                                      • General Features

                                        • Imaging Recommendations

                                          • CT Findings

                                            • MR Findings

                                              • Angiographic Findings

                                                • Ultrasonographic Findings

                                                  DIFFERENTIAL DIAGNOSIS

                                                    PATHOLOGY

                                                    • General Features

                                                      CLINICAL ISSUES

                                                      • Presentation

                                                        • Demographics

                                                          • Natural History & Prognosis

                                                            • Treatment

                                                              Selected References

                                                              1. Fossaceca R et al: Long-term efficacy of endovascular treatment of isolated iliac artery aneurysms. Radiol Med. 118(1):62-73, 2013
                                                              2. Parlani G et al: Long-term results of iliac aneurysm repair with iliac branched endograft: a 5-year experience on 100 consecutive cases. Eur J Vasc Endovasc Surg. 43(3):287-92, 2012
                                                              3. Melas N et al: Isolated common iliac artery aneurysms: a revised classification to assist endovascular repair. J Endovasc Ther. 18(5):697-715, 2011
                                                              4. Chemelli A et al: Endovascular repair of isolated iliac artery aneurysms. J Endovasc Ther. 17(4):492-503, 2010
                                                              5. Dorigo W et al: The Treatment of Isolated Iliac Artery Aneurysm in Patients with Non-aneurysmal Aorta. Eur J Vasc Endovasc Surg. 2008
                                                              6. Gabrielli R et al: Classic and endovascular surgical management of isolated iliac artery aneurysms. Minerva Cardioangiol. 55(2):133-48, 2007
                                                              7. Laganà D et al: Endovascular treatment of isolated iliac artery aneurysms: 2-year follow-up. Radiol Med (Torino). 112(6):826-36, 2007
                                                              8. Mofidi R et al: Endovascular repair of a ruptured mycotic aneurysm of the common iliac artery. Cardiovasc Intervent Radiol. 30(5):1029-32, 2007
                                                              9. Pitoulias GA et al: Isolated iliac artery aneurysms: endovascular versus open elective repair. J Vasc Surg. 46(4):648-54, 2007
                                                              10. Stroumpouli E et al: The endovascular management of iliac artery aneurysms. Cardiovasc Intervent Radiol. 30(6):1099-104, 2007
                                                              11. van Kelckhoven BJ et al: Ruptured internal iliac artery aneurysm: staged emergency endovascular treatment in the interventional radiology suite. Cardiovasc Intervent Radiol. 30(4):774-7, 2007
                                                              12. Boules TN et al: Endovascular management of isolated iliac artery aneurysms. J Vasc Surg. 44(1):29-37, 2006
                                                              13. Tielliu IF et al: Endovascular treatment of iliac artery aneurysms with a tubular stent-graft: mid-term results. J Vasc Surg. 43(3):440-5, 2006
                                                              14. Dix FP et al: The isolated internal iliac artery aneurysm--a review. Eur J Vasc Endovasc Surg. 30(2):119-29, 2005
                                                              15. Sakamoto I et al: Endovascular treatment of iliac artery aneurysms. Radiographics. 25 Suppl 1:S213-27, 2005
                                                              16. Sandhu RS et al: Isolated iliac artery aneurysms. Semin Vasc Surg. 18(4):209-15, 2005