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Revista chilena de cirugía

versión On-line ISSN 0718-4026

Resumen

BOMBIN F, JUAN; KOTLIK A, ALEJANDRO; SAN MARTIN G, HÉCTOR  y  SEGUEL S, GABRIEL. Persistent sciatic artery aneurysm: A case report. Rev Chil Cir [online]. 2010, vol.62, n.5, pp.502-507. ISSN 0718-4026.  http://dx.doi.org/10.4067/S0718-40262010000500014.

We report the case of a 71 years old female patient, who had a partially thrombosed true aneurysm in a persistent sciatic artery (PSA), treated in the Surgery Department of Hospital Dr. Eduardo Pereira of Valparaiso. The sciatic artery arises from the umbilical artery and during early embryological state is the main blood supply of the lower limbs. Later, the superficial femoral artery appears with the subsequent progressive involution of the sciatic artery. PSA is a rare congenital vascular anomaly that occurs when sciatic artery fails to regress during fetal development. This is associated with superficial femoral artery hipoplasia and the PSA becomes the dominant arterial inflow to the lower limb. This anatomic abnormality may be bilateral and can remain asymptomatic for many years, however, it has been described aneurysmal degeneration, like in this case, symptoms of sciatic nerve compression, aneurysm thrombosis and distal embolization.

Palabras clave : Persistent sciatic artery; aneurysm; surgical treatment.

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