BILATERAL PERSISTENT SCIATIC ARTERY: A CASE REPORT OF A RARE VARIANT WITH CLINICAL IMPLICATIONS

  • Tiago André Moura Rodrigues Department of Radiology, Hospital de Santa Maria, Lisbon
  • Madalena Ramalho Department of Radiology, Hospital de Santa Maria, Lisbon
  • Tiago Ferreira Department of Angiology and Vascular Surgery, Hospital de Santa Maria, Lisbon
  • Augusto Ministro Department of Angiology and Vascular Surgery, Hospital de Santa Maria, Lisbon
  • João Leitão Department of Radiology, Hospital de Santa Maria, Lisbon
Keywords: Persistent sciatic artery, anatomic variants, aneurysm, lower extremity, CT-Angiography

Abstract

Although rare, the persistence of a sciatic artery is a clinically significant vascular variant, since it is often associated with complications such as aneurysm formation, thrombosis and ischaemia. We present the case of a patient with signs of subacute ischaemia on the right lower limb and a pulsatile mass in the right inferior gluteal region. CT angiography revealed a bilateral persistent sciatic artery (PSA) complicated by aneurysm formation and embolization of distal popliteal artery. Treatment included a femoro-popliteal bypass, ligation of the popliteal artery above the anastomosis and embolization of the aneurysmal lesion.

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References

1. I. M. van Hooft, C. J. Zeebregts, S. M. M. van Sterkenburg, W. R. de
Vries, and M. M. P. J. Reijnen, “The Persistent Sciatic Artery,” Eur. J.
Vasc. Endovasc. Surg., vol. 37, no. 5, pp. 585–591, 2009.
2. B. Cavallo Marincola, A. Napoli, M. Anzidei, E. Marotta, F. Boni, G.
Cartocci, L. Bertaccini, V. Noce, M. Antonietta Pacilé, and C. Catalano,
“Persistence of the sciatic artery: a case report of a combined
(complete and incomplete) type causing leg ischemia.,” Case
Rep. Vasc. Med., vol. 2012, p. 196798, 2012.
3. S. Gauffre, P. Lasjaunias, and M. Zerah, “Sciatic artery: a case,
review of literature and attempt of systemization,” Surg. Radiol.
Anat., vol. 16, no. 1, pp. 105–109, 1994.
4. A. Graf, B. Keyashian, A. Brown, S. M. Tutton, and C. J. Lee, “A hybrid
approach for the treatment of persistent sciatic artery aneurysms,”
J. Vasc. Surg. Cases Innov. Tech., vol. 2, no. 4, pp. 174–177, 2016.
5. C. J. Pillet J, Cronier P, Mercier Ph, “The ischio popliteal arterial
trunk: a report of two cases.,” Anat Clin, vol. 3, p. 329e31, 1982.
6. S. K. Brantley, E. E. Rigdon, and S. Raju, “Persistent sciatic artery:
Embryology, pathology, and treatment,” J. Vasc. Surg., vol. 18, no.
2, pp. 242–248, 1993.
Published
201-11-07
Section
Clinical Case