Keegan Kristin Hovis BS, Presenter: Nothing to Disclose

Yu-Ming Chang MD, PhD, Abstract Co-Author: Nothing to Disclose

Joshua P. Thatcher MD, Abstract Co-Author: Nothing to Disclose

Rachel Sobel MD, Abstract Co-Author: Nothing to Disclose

Akifumi Fujita MD, Abstract Co-Author: Nothing to Disclose

Osamu Sakai MD, PhD, Abstract Co-Author: Speaker, Bracco Group Speaker, KYORIN Holdings, Inc Speaker, Eisai Co, Ltd

Eye movement disorders may result from a broad range of etiologies involving the brain, peripheral nerves, and orbit. Thus, radiologists should be aware of patterns of eye movement restriction that may indicate a specific etiology or imaging findings so that essential diagnoses are not missed. The purpose of this exhibit is to: 1. Review the anatomy of the oculomotor system and the physiology of eye movement 2. Review various pathologies that cause oculomotor dysfunction 3. Provide a clinical correlation between imaging and patient presentation of various eye movement disorders  

1. Anatomy and normal physiology of eye movement 2. Eye movement disorders      a. Mechanical restriction:            i. Trauma                1. Muscular                2. Denervation          ii. Tumors:                 1. Extraocular muscles: lymphoma, rhabdomyosarcoma, metastases, etc                2. Extramuscular: lymphoma, lacrimal gland tumors, hemangiomas, schwannomas, etc         iii. Inflammatory/Autoimmune: thyroid orbitopathy, idiopathic orbital myositis, sarcoidosis, systemic lupus erythematosis, granulomatosis with polyangitis, Crohn’s disease      b. Peripheral nervous system: isolated/combined cranial nerve palsies (III, IV, VI), myasthenia gravis      c. Central nervous system: stroke, tumors, trauma, multiple sclerosis, vascular malformations, hydrocephalus, etc  

http://abstract.rsna.org/uploads/2014/14010019/14010019_p5p4.pdf

Hovis, K, Chang, Y, Thatcher, J, Sobel, R, Fujita, A, Sakai, O, Clinicoradiological Correlation of Extraocular Eye Movement Disorders: Seeing Beneath the Surface.  Radiological Society of North America 2014 Scientific Assembly and Annual Meeting, - ,Chicago IL. http://archive.rsna.org/2014/14010019.html