PHYSICIAN'S CORNER
Sellar Lesions
Return to the Physician's Corner - MRI (with and without contrast) is indicated for the evaluation of abnormalities of pituitary hormones.
- MRI is indicated for the evaluations for the symptoms that suggest a Sellar Lesion mass. ( i.e. bi-temporal hemi-anopsia and cavernous sinus syndrome).
- MRI is useful in evaluating the secondary effects of sellar tumors.
- With dynamic pituitary Imaging; adenomas smaller than 5mm can be picked up with MRI.
- MRI is very useful in evaluating, hypothalamus and to locate the posterior pituitary bright spot, which sometimes can be ectopic.
- CT scan is not being done for pituitary abnormalities, these days.
In addition to that, supra sellar abnormalities (possible cranio-pharyngioma or suprasellar aneurysm) are also better defined with MRI