Figure 3: Pituitary stalk thickening at diagnosis and decreased size of the pituitary stalk after a 6-year follow up. Magnetic resonance imaging of pituitary at the diagnosis revealed an enlarged pituitary stalk of 7 x 6 x 5 mm (arrow) with a demonstrated posterior bright spot. A and B) T1W sagittal view without and with Gadolinium, respectively; C and D) T1W coronal view without and with Gadolinium, respectively. Magnetic resonance imaging of pituitary 6 years after diagnosis demonstrated a reduction in the size of the pituitary nodule at pituitary stalk from 7 x 6 x 5 mm to 2 mm. (arrow) and loss of posterior bright spot. E and F) T1W sagittal view without and with Gadolinium, respectively; G and H) T1W coronal view without and with Gadolinium, respectively.