case_images: PMC11404772_01
case_images: Computed tomography (CT) - abdominal window. (a) Axial. Bilateral persistence of the sciatic artery, representing continuation of the internal iliac artery to the popliteal artery (complete type) via the greater sciatic foramen, posterior to the piriformis muscle, along the path of the sciatic nerve (black arrow). There is associated bilateral hypoplasia of the external iliac arteries and the femoral system, maintaining opacification (arrowhead); (b) Axial. Aneurysmal degeneration (possibly of a chronic traumatic nature) of the right sciatic artery, originating around 7.0 cm below the internal iliac artery, 9.2 cm in length, with a maximum axial diameter of 6.7 x 5.7 cm. The aneurysmal degeneration has lobulated and irregular margins (black arrow); (c) Sagittal. Aneurysmal degeneration (possibly of a chronic traumatic nature), partially thrombosed, of the right sciatic artery. There is also an absence of opacification of the arterial system downstream from the aneurysm in the phases available (black arrow).
case_images: jvb-23-e20230151-g01-en.jpg
case_images: PMC11404772_01_jvb-23-e20230151-g01-en.jpg
case_images: gf0100
case_images: This was a continuation of the internal iliac artery to the popliteal artery via the greater sciatic foramen, posterior to the piriformis muscle, along the path of the sciatic nerve (Figure 1).
case_images: 3D reconstruction. (a) Anterior. Bilateral persistence of the sciatic artery, representing continuation of the internal iliac artery to the popliteal artery (complete type) via the greater sciatic foramen, posterior to the piriformis muscle, along the path of the sciatic nerve (black arrow). There is associated bilateral hypoplasia of the external iliac arteries and the femoral system, maintaining opacification (arrowhead); (b) Posterior. Aneurysmal degeneration (possibly of a chronic traumatic nature) of the right sciatic artery originating around 7.0 cm below the internal iliac artery, 9.2 cm in length, with a maximum axial diameter of 6.7 x 5.7 cm (black arrow).
case_images: jvb-23-e20230151-g02-en.jpg
case_images: PMC11404772_01_jvb-23-e20230151-g02-en.jpg
case_images: gf0200
case_images: There was also bilateral hypoplasia of the external iliac arteries and the femoral system, with opacification maintained (Figure 2).