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MRI of the lumbar spine with and without contrast. (a) Sagittal T2, (b) sagittal T1, and (c) sagittal T1 after fat saturation: significant enlargement of previously noted sacral mass with new bony erosion and significant mass effect within the spinal canal causing displacement of posterior spinal structures. The mass has taken a more lobulated appearance as seen on the T2 images and is vividly contrast enhancing.
