Figure 1

Preoperative images of computed tomography (CT) and magnetic resonance imaging (MRI) scans. (A) Sagittal CT showing isodensity or slightly higher density in the sellar and suprasellar areas (arrow indicates the cystic mass in the suprasellar areas). (B,C) Transverse MRI showing a short T1-weighted signal in the sellar area and prepontine cistern and a short T2-weighted signal (arrows indicate the mass). (D-F) Contrast MRI showing an enhanced mass in the sellar and suprasellar areas with a cystic mass in the prepontine cistern (D,F; arrows indicate the mass. E; arrow indicates the cystic mass in the prepontine cistern).