Figure 1.

Brain MRI: axial fluid-attenuated inversion recovery-weighted image revealing an hyperintense pituitary mass (A); coronal T1-weigted and saggital T1-weighted image after gadolinium contrast (B, C), demonstrating a hyperintense pituitary mass with intense and homogeneous pituitary contrast-enhancement (B). Note the symmetrical aspect and involvement of the pituitary stalk and intact sellar floor. Saggital T1-weighted image with gadolinium contrast after 3 days of high-pulse dose corticosteroid treatment (D), demonstrating a decrease in size of the pituitary mass.