Findings on MRI suggestive  of Sheehan's syndrome are decreased sellar volume, empty sella, pituitary remnant tissue, or CSF in the sella.
Sheehan's syndrome MRI
Sheehan's syndrome CT
Schwannoma CT
Brain Stem Gliomas MRI
Pott's disease MRI
Brain Stem Gliomas CT
Wernicke-Korsakoff syndrome MRI
Sheehan's syndrome physical examination