Fig. 30
From: Understanding a mass in the paraspinal region: an anatomical approach
Giant cell tumour with left corporeal-pedicle development in a 42-year-old female with low back pain of 4Â months of duration (a, b, c). Axial CT scan reconstruction (a) shows a lytic lesion with a sclerotic rim (black arrow) at the border of the tumour opposite to the eccentric side. As shown on axial CT with contrast agent (b), the tumour typically splays rather than engulfs the psoas muscles (white arrows) and the lumbar artery (arrowheads). Axial gadolinium-enhanced T1WI (c) demonstrates homogeneous and moderate enhancement. Yellow star shows the epicentre of the mass