Large-caliber persistent sciatic artery with aneurysm

Herein is reported a rare case of right persistent sciatic artery (PSA) in the cadaver of a 96-year-old woman who did not have any clinical manifestations related to this anomaly when alive. The anomalous PSA originated from the internal iliac artery, directed toward the infrapiriform foramen, and descended the dorsal side of the thigh. Approximately 20 mm inferior to the infrapiriform foramen, the PSA formed a relatively large aneurysm elongating for approximately 30 mm in length. It then passed under the long head of the femoral biceps muscles, and reached the popliteal fossa, maintaining a constant caliber (approx. 13 mm) as it went down distally. In contrast, the femoral artery was very narrow, and tapered at the level of the knee joint. In addition, the popliteal vein gave rise to two branches, one ran along with the sciatic artery and the other pierced the adductor muscles, and appeared on the ventral side of the thigh. It then drained into the deep femoral vein, which reached the pelvis via the femoral vein. The present case is an interesting example for clinicians who work in pelvic surgery.

[1]  C. Zeebregts,et al.  The persistent sciatic artery. , 2009, European journal of vascular and endovascular surgery : the official journal of the European Society for Vascular Surgery.

[2]  D. Radak,et al.  [Persistent sciatic artery: a case report]. , 2008, Srpski arhiv za celokupno lekarstvo.

[3]  F. Weidenreich Das Arteriensystem der Japaner , 2005, Naturwissenschaften.

[4]  H. Sawada,et al.  Bilateral persistent sciatic arteries in a japanese man , 2002, Anatomical science international.

[5]  J. Savov,et al.  Bilateral persistent complete sciatic artery , 2000, Clinical anatomy.

[6]  N. Baqi,et al.  Acute limb ischemia after transplantation in a patient with persistent sciatic artery. , 1998, Transplantation.

[7]  F. Adler A Case , 1863, The Lancet.

[8]  S. Yokoyama,et al.  Persistent primitive sciatic artery associated with other various anomalies of vessels. , 1997, Acta anatomica.

[9]  S. Moriura,et al.  Aneurysm of bilateral persistent sciatic arteries with ischemic complications: case report and review of the world literature. , 1994, Journal of vascular surgery.

[10]  S. Tohno,et al.  Anomaly of bilateral persistent sciatic arteries. , 1993, Kaibogaku zasshi. Journal of anatomy.

[11]  H. Chen,et al.  [A case of the persistent sciatic artery]. , 1991, Kaibogaku zasshi. Journal of anatomy.

[12]  S. Wv,et al.  Persistent sciatic artery: two case reports with emphasis on embryologic development. , 1984 .

[13]  M. Flye,et al.  Treatment of the Persistent Sciatic Artery , 1984, Annals of surgery.

[14]  W. Sharp,et al.  Persistent sciatic artery: two case reports with emphasis on embryologic development. , 1984, Surgery.

[15]  H. Senior The development of the arteries of the human lower extremity , 1919 .

[16]  P. Green ON A NEW VARIETY OF THE FEMORAL ARTERY.: With Observations , 1832 .