Segmental artery injury during transforaminal percutaneous endoscopic lumbar discectomy: Two case reports

Figure 1 Axial T2-weighted magnetic resonance image scan of the lumbar spine showed left psoas muscle hematoma (arrows).

Figure 2 Arteriography. A: Arteriography showed pseudoaneurysm (arrow) of the left 4^th lumbar segmental artery; B: Arteriography of embolization using microcoils.

Figure 3 Computed tomography scans of the abdomen aorta. A: Coronal image of the right retroperitoneal hemorrhage (arrows); B: Vascular reconstruction image showed no detected bleeding focus.

Figure 4 Arteriography showed the right 4^th lumbar segmental artery rupture. Arrows indicate blood leakage.