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Large-caliber persistent sciatic artery with aneurysm.

Haruo Futamata¹, Toyoko Kawate, Hiroshi Sakamoto

¹Department of Anatomy and Cell Biology, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, Yamanashi, Japan.

Anatomical Science International

|January 23, 2009

Summary

This summary is machine-generated.

A rare persistent sciatic artery (PSA) anomaly was found in a cadaver. This vascular variation, originating from the internal iliac artery, presented with an aneurysm and significantly narrowed femoral artery.

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Area of Science:

Anatomy
Vascular Surgery
Medical Imaging

Background:

Persistent sciatic artery (PSA) is a rare congenital anomaly.
Understanding vascular variations is crucial for surgical planning and diagnosis.

Observation:

A cadaver of a 96-year-old woman revealed a right persistent sciatic artery.
The anomalous artery originated from the internal iliac artery, coursed through the infrapiriform foramen, and descended the thigh.
A significant aneurysm was noted on the PSA, with a narrow contralateral femoral artery.

Findings:

The PSA maintained a consistent caliber distally, reaching the popliteal fossa.
Unusual branching of the popliteal vein was observed, with one branch accompanying the PSA.
The femoral artery was markedly hypoplastic, tapering at the knee.

Implications:

This case highlights a rare vascular anomaly with potential clinical significance.
Awareness of such variations is vital for surgeons, particularly in pelvic and lower limb procedures.
The findings offer insights into potential hemodynamic changes and surgical risks associated with PSA.