Pituitary macroadenoma with hemorrhage

The sella is expanded by a mass lesion, which extends superiorly to compress the optic chiasm. There is extensive hemorrhage therein, representing a combination of intracellular and extracellular methemoglobin. Note post-contrast the enhanced pituitary infundibulum, draped over the left side of the mass. The coronal scan on the far right of the figure was obtained intraoperatively, and demonstrates residual tumor tissue both within the cavernous sinus on the right and superiorly to the right of the infundibulum (which is now more convoluted in shape)

Pituitary macroadenoma with hemorrhage

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