MRI Brain (pituitary protocol)
The pituitary fossa is expanded, measuring 23 mm in anterior to posterior diameter, filled by a heterogeneous enhancing solid tumour, and shows a small focus of haemorrhagic component in its superior and posterior aspect. There is a suprasellar component that distorts the optic chiasm and diaphragma sella on the left. The infundibulum is not individualised and probably is displaced superiorly by the suprasellar extension of the mass.
On both sides the tumour bulges into the cavernous sinuses, contacting the right carotid artery over approximately 180 degrees and the left carotid artery over approximately 130 degrees. The mass also extends/bulges superiorly into the sphenoid sinus on the right.
The remainder of the imaged brain (please note this study has been targeted to the pituitary, and as such the whole brain has not been imaged) appears unremarkable.
Conclusion: Solid mass enlarging the pituitary fossa is in keeping with a macroadenoma.