Related Experiment Video

Updated: Aug 29, 2026

Chronic Constriction of the Sciatic Nerve and Pain Hypersensitivity Testing in Rats
08:23

Chronic Constriction of the Sciatic Nerve and Pain Hypersensitivity Testing in Rats

Published on: March 13, 2012

[Aneurysm of the persistent sciatic artery]

C Michel1, T Richard, P Jue Denis

  • 1Service de Radiologie Cardio-Vasculaire, Centre Médico-Chirurgical de l'Europe, 9 bis, rue de Saint-Germain, 78560 Le Port Marly. C.Michel20@wanadoo.fr

Journal De Radiologie
|January 8, 2004
PubMed

Insights

Persistent sciatic artery, a rare anomaly, can cause limb ischemia. This case highlights successful treatment with a femoro-tibio-peroneal bypass graft, leading to spontaneous aneurysmal exclusion.

Area of Science:

  • Vascular Surgery
  • Anatomical Anomalies
  • Radiology

Background:

  • Persistent sciatic artery (PSA) is a rare congenital anomaly where the sciatic artery fails to regress during embryonic development.
  • PSA is often associated with aneurysmal degeneration, leading to potential complications like limb ischemia or rupture.

Observation:

  • A case of PSA presenting with critical limb ischemia and a buttock pulsatile mass is described.
  • The patient was treated with a femoro-tibio-peroneal bypass graft.

Findings:

  • Follow-up helical computed tomography angiography (CTA) at six months revealed spontaneous exclusion of the aneurysm by thrombosis.
  • The PSA segment proximal to the aneurysm thrombosed, effectively excluding the aneurysm from circulation.

Implications:

  • This case suggests that surgical bypass may lead to spontaneous resolution of PSA aneurysms in select cases.
  • Review of literature indicates PSA is frequently associated with aneurysms and specific complications, often managed with bypass and embolization.

Related Concept Videos

Arteries of Lower Limbs01:20

Arteries of Lower Limbs

The external iliac artery transitions out of the body cavity, entering the femoral region of the lower leg, and is renamed the femoral artery at the point where it traverses the body wall. This artery is responsible for the distribution of blood to the thigh's deep muscles and the skin's ventral and lateral regions, achieved through several minor branches and the lateral deep femoral artery, which also spawns a lateral circumflex artery. The knee area receives blood from the genicular artery,...
Aneurysm II: Clinical Manifestations and Diagnostic Studies01:21

Aneurysm II: Clinical Manifestations and Diagnostic Studies

Thoracic, aortic arch and abdominal aneurysms are significant vascular conditions that can present with various clinical manifestations and lead to serious complications. Understanding these manifestations and the appropriate diagnostic studies is essential for effective management and treatment.Thoracic Aortic AneurysmsThoracic aortic aneurysms often remain asymptomatic until they reach a size that impinges on adjacent structures. They typically cause deep, diffuse chest pain that radiates to...
Peripheral Arterial Disease II: Clinical Manifestations and Diagnostic Evaluation01:21

Peripheral Arterial Disease II: Clinical Manifestations and Diagnostic Evaluation

Clinical manifestationsPeripheral Arterial Disease (PAD) manifests through a range of symptoms, from the characteristic intermittent claudication to atypical presentations and severe complications in advanced stages. Intermittent claudication, a hallmark symptom of PAD, presents as exercise-induced muscle pain that typically resolves within minutes of rest. This pain is reproducible and stems from inadequate blood flow, leading to the accumulation of lactic acid produced during anaerobic...
Abdominal Aorta01:25

Abdominal Aorta

Once the aorta traverses the diaphragmatic plane at the aortic hiatus, it is known as the abdominal aorta. This anatomical structure is positioned leftward of the spinal column, encased within a cocoon of adipose tissue behind the peritoneal cavity. It terminates at the L4 vertebra, where it splits into the common iliac arteries. Prior to this bifurcation, the abdominal aorta gives rise to several vital branches.
The celiac trunk, a singular artery, divides into the left gastric artery, which...
Aneurysm I: Introduction01:30

Aneurysm I: Introduction

An aortic aneurysm is a localized outpouching or dilation at a weak point in the artery wall. It may involve different parts of the aorta, such as the abdominal aorta, aortic arch, or thoracic aorta.Etiological factorsSeveral disorders are associated with aortic aneurysms.Congenital causes, such as primary connective tissue disorders like Marfan syndrome, impact the integrity and strength of connective tissues, notably affecting the aorta. Marfan syndrome is a genetic disorder that specifically...
Aneurysm III: Interprofessional Care01:26

Aneurysm III: Interprofessional Care

Aneurysm management involves either conservative medical therapy or surgical intervention, depending on the size and symptoms of the aneurysm. Conservative management is generally reserved for smaller, asymptomatic aneurysms, while larger or symptomatic aneurysms often necessitate surgical repair.Conservative Medical TherapyFor small, asymptomatic aneurysms, particularly abdominal aortic aneurysms (AAA) less than 5.5 centimeters in diameter, conservative medical therapy is recommended. This...