Figure 4.

Metastatic prostate cancer. (A) Sagittal T1-weighted MRI with contrast shows the metastatic disease and the left lumbar 3–4 foraminal compression secondary to tumor and disc in the foramen (arrow); (B) lateral fluoroscopic image shows the beveled tubular retractor in the left L3-4 foramen; (C) AP fluoroscopic image shows the beveled tubular retract in the left L3-4 foramen with the radiofrequency probe shown reaching medial to the left L4-pedicle. AP, anterior-posterior; MRI, magnetic resonance imaging.