Figure 2. Sacral MRI (2019). The sagittal T2-weighted view (A) reveals a large, lobulated mass (arrow) which is heterogeneously hyperintense and obliterates the sacral spinal canal. The mass has a presacral component (arrowhead). The coronal T1-weighted, post-gadolinium view oriented to the anterior surface of the sacrum (B) reveals that the mass is contrast-enhancing and its presacral extension is more prominent on the right side (arrow). The mass also extends to the iliac side of the right sacroiliac joint (arrowhead).