Fig. 1From: Surgical interventions for Bertolotti’s syndrome: case report and review of unsatisfactory cases in the literatureA Sagittal T2-weighted magnetic resonance image demonstrating only mild disc herniation, without evidence of foraminal stenosis. B Coronal computed tomography (CT) image taken before surgery, showing the anomalous enlargement of the left L5 transverse process, articulated with the left sacrum and ilium (Castellvi IIA). C Three-dimensional CT scan demonstrating the exact configuration of the extraforaminal stenosis at the anterior exit zone of the nerve rootBack to article page