fig 1.

MR images obtained through the pituitary gland show diffuse enlargement of the pituitary gland. The gland shows diffuse heterogeneous enhancement that extends to the optic chiasm (arrow). Also note the presence of mucosal thickening in the bilateral sphenoid sinus.

A, T1-weighted coronal (450/15/4 [TR/TE/excitations]) MR image.

B, T2-weighted coronal (4000/90/3; echo train length, 8) MR image.

C, Contrast-enhanced T1-weighted coronal (450/15/4) MR image.

D, Contrast-enhanced T1-weight sagittal (450/15/4) MR image.