Acute retinal necrosis CT: Difference between revisions
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==Key CT Findings for Acute retinal necrosis== | ==Key CT Findings for Acute retinal necrosis== | ||
CT imaging may reveal indicators of [[inflammation]] and infection by the causative pathogen for Acute retinal necrosis (ARN).<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> | |||
*Hypoattenuation along the [[optic tract]] indicative of [[Varicella-zoster virus]] (VZV) infection. | |||
*Hyperattenuation along the [[optic tract]], [[retina]], [[sclerae]], and [[lateral geniculate body]], indicating presence of lesions indicative of ARN.<ref name="pmid4026646">{{cite journal |vauthors=Sergott RC, Belmont JB, Savino PJ, Fischer DH, Bosley TM, Schatz NJ |title=Optic nerve involvement in the acute retinal necrosis syndrome |journal=Arch. Ophthalmol. |volume=103 |issue=8 |pages=1160–2 |year=1985 |pmid=4026646 |doi= |url=}}</ref> | |||
*Infection-caused shrunken left globe. | |||
==References== | ==References== | ||
Revision as of 17:21, 24 August 2016
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1] Associate Editor(s)-in-Chief: Luke Rusowicz-Orazem, B.S.
Overview
Key CT Findings for Acute retinal necrosis
CT imaging may reveal indicators of inflammation and infection by the causative pathogen for Acute retinal necrosis (ARN).[1]
- Hypoattenuation along the optic tract indicative of Varicella-zoster virus (VZV) infection.
- Hyperattenuation along the optic tract, retina, sclerae, and lateral geniculate body, indicating presence of lesions indicative of ARN.[2]
- Infection-caused shrunken left globe.
References
- ↑ Bert RJ, Samawareerwa R, Melhem ER (2004). "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". AJNR Am J Neuroradiol. 25 (10): 1722–9. PMID 15569737.
- ↑ Sergott RC, Belmont JB, Savino PJ, Fischer DH, Bosley TM, Schatz NJ (1985). "Optic nerve involvement in the acute retinal necrosis syndrome". Arch. Ophthalmol. 103 (8): 1160–2. PMID 4026646.