A Pulsating Buttock Mass as a Rare Presentation of a Persistent Sciatic Artery

IntroductionThe persistent sciatic artery (PSA) represents a rare vascular anomaly of the embryological axial artery.ReportWe present a case of a unilateral left-sided aneurysm formation in bilateral PSA of the complete type in a 69-year-old patient with unspecific pain in the left buttock with weakness and numbness of the lower limb. After treatment with an autologous reversed vein graft interposition using the transgluteal approach, the patient recovered completely and remains asymptomatic, 16 months after surgery.DiscussionAlthough this condition is not prevalent in daily clinical situations, especially surgeons must be aware of PSA during surgical interventions in this area.