| Title |
Bimedial rectus hypermetabolism in convergence spasm as observed on positron emission tomography. |
| Creator |
Jeong, Seong-Hae; Oh, Young-Mi; Kim, Chae-Yong; Kim, Ji Soo |
| Affiliation |
Department of Neurology, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seoul, Korea. |
| Abstract |
A 52-year-old man developed vertical gaze palsy, convergence spasm, and convergence-retraction nystagmus due to glioblastoma of the right thalamus. 18F-fluorodeoxyglucose positron emission tomography (PET) inadvertently demonstrated markedly increased metabolism in the medial rectus muscles. The hypermetabolism indicates active contraction of these extraocular muscles due to excessive convergence drive attributed to inappropriate activation or disrupted inhibition of convergence neurons by the diencephalic lesion. |
| Subject |
Brain Neoplasms; Energy Metabolism; Esotropia; Eye Movements; Glioblastoma; Humans; Hydrocephalus; Male; Middle Older people; Muscle Contraction; Neural Inhibition; Neural Pathways; Ocular Motility Disorders; Oculomotor Muscles; Positron-Emission Tomography; Spasm; Syndrome; Tegmentum Mesencephali; Thalamic Diseases; Thalamus |
| Format |
application/pdf |
| Publication Type |
Journal Article |
| Collection |
Neuro-Ophthalmology Virtual Education Library: Journal of Neuro-Ophthalmology Archives: https://novel.utah.edu/jno/ |
| Publisher |
Lippincott, Williams & Wilkins |
| Holding Institution |
Spencer S. Eccles Health Sciences Library, University of Utah |
| Rights Management |
© North American Neuro-Ophthalmology Society |
| Setname |
ehsl_novel_jno |
| ID |
225728 |
| Reference URL |
https://collections.lib.utah.edu/ark:/87278/s6gj2q18/225728 |
