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Free Content In and Around the Optic Chiasm: A Pictorial Review of Neuroimaging

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The optic chiasm is a key anatomic structure along the visual pathway, situated at the crossroads between the optic nerves and tracts. A wide range of diseases can affect the optic chiasm and its surrounding strategic region at the base of the brain. Management strategies for optic chiasm abnormalities vary substantially, depending on the abnormalities revealed on neuroimaging. Scant attention has been paid to date to the comprehensive classification of neuroimaging manifestations of optic chiasm abnormalities. We comprehensively reviewed and presented the imaging findings in a wide spectrum of pathologies that originate from or involve the optic chiasm. This review will aid in differentiating the many neuroimaging appearances of lesions in this region.

Learning Objective: List the lesions that involve the optic chiasm and classify them according to their etiology.
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Keywords: AIDS = acquired immunodeficiency syndrome; CCF = carotid-cavernous sinus fistula; GBM = glioblastoma; NCC = neurocysticercosis; TB = tuberculosis

Document Type: Research Article

Publication date: February 1, 2019

This article was made available online on November 6, 2018 as a Fast Track article with title: "In and Around the Optic Chiasm: A Pictorial Review of Neuroimaging".

More about this publication?
  • Neurographics is the peer-reviewed, bimonthly educational journal of the American Society of Neuroradiology. The journal comprises articles selected from material presented at the ASNR Annual Meeting. Neurographics also publishes other high-quality submissions that are primarily educational and have a high emphasis on a pictorial approach. Neurographics offers CME credit for reading review articles and completing quiz-based self-assessment activities. CME credit for review articles may be claimed up to 3 years after an article's publication date. Visit to view all available CME courses.
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