case_images: PMC6000873_01
case_images: Brain magnetic resonance imaging demonstrating enlarging pituitary mass. (a) T1-weighted MRI demonstrating enlarged pituitary gland containing a hypovascular 10.5 x 7.5 mm mass lesion with thickening of the pituitary infundibulum without intracranial hemorrhage or extra-axial fluid collection. (b) Imaging one month later with T1-weighted MRI demonstrating a 22.0 x 12.0 mm bilobed mass with 8 mm suprasellar extension exerting mass effect on overlying optic chiasm.
case_images: CRIONM2018-2349021.001.jpg
case_images: PMC6000873_01_CRIONM2018-2349021.001.jpg
case_images: fig1
case_images: A screening magnetic resonance image of the head revealed a new hypovascular pituitary mass measuring approximately 1 cm by 0.8 cm (Figure 1(a)). A repeat MRI demonstrated rapid enlargement of his pituitary mass, nearly doubled in size and described as a 2.2 cm by 1.2 cm mass impinging on the overlying optic chiasm (Figure 1(b)).