Figure 1.

Pre-operative MR images of the lumbosacral spine show the presence of an intraspinal cystic lesion causing scalloping of the posterior aspects of bodies of L4, L5 and S1 vertebrae. It is heterogeneously hyperintense on T2 [as shown with white arrows in figure 1a], hypointense on T1 [Figure 1b], hyperintense on STIR [Figure 1c] and shows heterogeneous post contrast enhancement [Figure 1d]. There is presence of fat component in the lesion which is hyperintense on T1 and suppressed on STIR (as shown with red arrows in Figure 1b and c)