Macroadenoma of the pituitary gland, with intra-operative MR

Coronal and sagittal T1-weighted post-contrast scans are presented in a patient with a small macroadenoma, both prior to surgery (upper row) and intraoperatively (lower row). Note that the adenoma enhances less than the normal pituitary, and is located inferiorly within the sella. There is cavernous sinus invasion on the right. On the intra-operative scan, near complete removal of tumor is demonstrated, with a small residual focus in the right cavernous sinus.

Macroadenoma of the pituitary gland, with intraoperative MR

Part of the on-line supplement to Neuroradiology – The Essentials with MR and CT (© 2015)