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Figure 2b. Sagittal T1-weighted (a) and T2-weighted (b) MR images show a lobulated expansile mass that has destroyed the sacrum and extended anteriorly into the presacral space and superiorly into the spinal canal. The mass is isointense relative to the spinal cord on the T1-weighted image and heterogeneous but predominantly hyperintense on the T2-weighted image.
