Fig. 19
![Fig. 19](http://media.springernature.com/full/springer-static/image/art%3A10.1007%2Fs13244-015-0401-5/MediaObjects/13244_2015_401_Fig19_HTML.gif)
Pituitary adenomas. Sagittal post-contrast fat-suppressed T1WI (a) shows an heterogenously enhancing pituitary macroadenoma which contains a non-enhancing portion with high signal on T2WI (b). secondary to cystic degeneration. Coronal post-contrast fat-suppressed T1WI (c) shows a pituitary microadenoma which shows less early contrast enhancement than the normal pituitary tissue