At the optic chiasm axons make a key binary decision either to cross the chiasmal midline to innervate the contralateral optic tract or to remain uncrossed and innervate the ipsilateral optic ...

T1-weighted coronal MRIs. Note the diffuse enlargement of both optic nerves, the optic chiasm and both optic tracts. One can easily appreciate the infiltration of these structures, especially when ...

Note the large mass in the region of the sella which is growing up into and displacing the optic chiasm. The chiasm is draped and thinned over the mass. Surgical resection demonstrated a large ...