Traumatic disruption of the optic chiasm.
A 27-year-old man developed a persistent bitemporal hemianopia after severe head trauma sustained in a high-speed motor vehicle accident. The initial brain MRI revealed hemorrhagic contusion of the optic chiasm. A brain MRI performed 4 weeks later demonstrated complete chiasmal transection, a phenomenon rarely documented with imaging.
Segal
Laura
L
McGill University Health Centre, Montreal, Quebec, Canada. lsegal2@gmail.com
An
Jella Angela
JA
Gans
Mark
M
D000063:Accidents, Traffic; D000328:Adult; D006423:Hemianopsia / Q000175:diagnosis*; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D009897:Optic Chiasm / Q000293:injuries*; D014792:Visual Acuity / Q000502:physiology; D014794:Visual Fields / Q000502:physiology