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> | CT imaging may reveal indicators of [[inflammation]] and infection by the causative pathogen for acute [[retinal]] [[necrosis]] (ARN). Such indicators include:<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]] | *Hypoattenuation along the [[optic tract]] (suggestive of [[Varicella-zoster virus]] (VZV) infection) | ||
*Hyperattenuation along the [[optic tract]], [[retina]], [[sclerae]], and [[lateral geniculate body]] demonstrates the presence of lesions | *Hyperattenuation along the [[optic tract]], [[retina]], [[sclerae]], and [[lateral geniculate body]] (demonstrates the presence of lesions)<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 | *Infection-caused shrunken left globe | ||
==References== | ==References== | ||
Revision as of 14:43, 12 September 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
CT scans may reveal indicators of inflammation and infection by the causative pathogen of acute retinal necrosis. Such indicators include hypoattenuation along the optic tract—indicative of Varicella-zoster virus (VZV) infection—and hyperattenuation along the optic tract, retina, sclerae, and lateral geniculate body.
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). Such indicators include:[1]
- Hypoattenuation along the optic tract (suggestive of Varicella-zoster virus (VZV) infection)
- Hyperattenuation along the optic tract, retina, sclerae, and lateral geniculate body (demonstrates the presence of lesions)[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.