Figure 2. Intraoperative MRI scan. The large macroadenoma is not seen after transsphenoidal surgery. The optic chiasm (yellow arrow) can be seen after removal of the tumor. (A) Coronal image.

In the optic chiasm, which is wedged between ... 15 Although the tram-track sign was not observed on MRI in this patient, optic nerve sheath meningiomas are more likely to occur in adults than ...

MRI showed a 1.5 cm lesion in the region of the sella, abutting the optic chiasm, and consistent with the diagnosis of pituitary macroadenoma. He is otherwise asymptomatic and has normal sexual ...

CHICAGO — While there is still no ideal treatment for optic nerve sheath meningioma, recent advances in radiation therapy have provided promising outcomes that bode well for management of these ...

T1-weighted with gadolinium coronal MRI. Note the large enhancing mass in the region of the sella that is growing up into and displacing the optic chiasm and hypothalamus. Surgical resection ...

Aneurysms of the paraophthalmic artery are uncommon, representing about 5% of all cerebral aneurysms, and are typically detected because of progressive visual defects.1 The differential diagnosis for ...

When she went to see a doctor, they sent her to get an MRI ... showed that she had a meningioma — a tumor in a rare and ...