Acute retinal necrosis MRI: Difference between revisions
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__NOTOC__ | __NOTOC__ | ||
{{Acute retinal necrosis}} | {{Acute retinal necrosis}} | ||
{{CMG}} {{AE}} {{LRO}} | {{CMG}}; {{AE}} {{LRO}} | ||
==Overview== | ==Overview== | ||
MRI imaging may reveal lesions | MRI imaging may reveal lesions indicative of infection from acute [[retinal]] [[necrosis]] pathogens. | ||
==Key MRI Findings for Acute retinal necrosis== | ==Key MRI Findings for Acute retinal necrosis== | ||
MRI imaging may reveal the following indicators of | MRI imaging may reveal the following indicators of acute [[retinal]] [[necrosis]]:<ref name="pmid15569737">{{cite journal |vauthors=Bert RJ, Samawareerwa R, Melhem ER |title=CNS MR and CT findings associated with a clinical presentation of herpetic acute retinal necrosis and herpetic retrobulbar optic neuritis: five HIV-infected and one non-infected patients |journal=AJNR Am J Neuroradiol |volume=25 |issue=10 |pages=1722–9 |year=2004 |pmid=15569737 |doi= |url=}}</ref> | ||
*Increased T2 signal intensity in the optic pathway: [[optic nerves]], [[optic chiasm]], [[lateral geniculate bodies]], [[optic radiations]], [[visual cortex]], [[midbrain]] structures, [[trigeminal nerves]], and [[meninges]] | *Increased T2 signal intensity in the optic pathway: [[optic nerves]], [[optic chiasm]], [[lateral geniculate bodies]], [[optic radiations]], [[visual cortex]], [[midbrain]] structures, [[trigeminal nerves]], and [[meninges]] | ||
** | **Increased intensity may reveal lesions indicative of [[Herpes simplex virus]] or [[Cytomegalovirus]] infection | ||
*[[Contrast-enhanced|Contrast enhanced CT]] T1-weighted images may reveal enhancement of [[optic nerve]], [[optic chiasm]], [[optic tracts]], [[optic radiation]], semilunar ganglion–Meckel cave, [[meninges]], and [[midbrain]] | *[[Contrast-enhanced|Contrast enhanced CT]] T1-weighted images may reveal enhancement of [[optic nerve]], [[optic chiasm]], [[optic tracts]], [[optic radiation]], semilunar ganglion–Meckel cave, [[meninges]], and [[midbrain]] | ||
==References== | ==References== | ||
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{{WH}} | {{WH}} | ||
{{WS}} | {{WS}} | ||
[[Category:Disease]] | |||
[[Category:Ophthalmology]] | [[Category:Ophthalmology]] | ||
[[Category:Up-To-Date]] | |||
[[Category:Emergency medicine]] | |||
[[Category:Infectious disease]] | |||
Latest revision as of 20:16, 29 July 2020
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Acute retinal necrosis Microchapters |
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Diagnosis |
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Treatment |
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Case Studies |
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Acute retinal necrosis MRI On the Web |
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American Roentgen Ray Society Images of Acute retinal necrosis MRI |
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Risk calculators and risk factors for Acute retinal necrosis MRI |
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Luke Rusowicz-Orazem, B.S.
Overview
MRI imaging may reveal lesions indicative of infection from acute retinal necrosis pathogens.
Key MRI Findings for Acute retinal necrosis
MRI imaging may reveal the following indicators of acute retinal necrosis:[1]
- Increased T2 signal intensity in the optic pathway: optic nerves, optic chiasm, lateral geniculate bodies, optic radiations, visual cortex, midbrain structures, trigeminal nerves, and meninges
- Increased intensity may reveal lesions indicative of Herpes simplex virus or Cytomegalovirus infection
- Contrast enhanced CT T1-weighted images may reveal enhancement of optic nerve, optic chiasm, optic tracts, optic radiation, semilunar ganglion–Meckel cave, meninges, and midbrain