Orbital cellulitis CT: Difference between revisions
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{{Orbital cellulitis}} | {{Orbital cellulitis}} | ||
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==Imaging Findings== | ==Overview== | ||
[[ | On [[CT]] scan of the head, orbital cellulitis is characterized by hyperdensity within low density periorbital fat and generalized elevation of the periobita. [[CT]] scan of the [[orbit]] is the imaging modality of choice for patients with orbital cellulitis. [[CT]] scan is also diagnostic of [[subperiosteal]] and [[abscess|orbital abscesses]] associated with orbital cellulitis.<ref name=eyewikiorbitalcellulitis>American Academy of Ophthalmology EyeWiki (2015)http://eyewiki.aao.org/Orbital_Cellulitis#Diagnostic_procedures</ref><ref name=radiopaedia>Radiopaedia (2016)http://radiopaedia.org/articles/orbital-infection</ref><ref name=merckmanualorbitalcellulitis>Merck Manual Professional Edition (2016)https://www.merckmanuals.com/professional/eye-disorders/orbital-diseases/preseptal-and-orbital-cellulitis</ref><ref name="pmid22346113">{{cite journal| author=Chaudhry IA, Al-Rashed W, Arat YO| title=The hot orbit: orbital cellulitis. | journal=Middle East Afr J Ophthalmol | year= 2012 | volume= 19 | issue= 1 | pages= 34-42 | pmid=22346113 | doi=10.4103/0974-9233.92114 | pmc=3277022 | url=http://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=22346113 }} </ref><ref name="pmid18936033">{{cite journal| author=LeBedis CA, Sakai O| title=Nontraumatic orbital conditions: diagnosis with CT and MR imaging in the emergent setting. | journal=Radiographics | year= 2008 | volume= 28 | issue= 6 | pages= 1741-53 | pmid=18936033 | doi=10.1148/rg.286085515 | pmc= | url=http://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=18936033 }} </ref><ref name="pmid8327669">{{cite journal| author=Yousem DM| title=Imaging of sinonasal inflammatory disease. | journal=Radiology | year= 1993 | volume= 188 | issue= 2 | pages= 303-14 | pmid=8327669 | doi=10.1148/radiology.188.2.8327669 | pmc= | url=http://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=8327669 }} </ref> | ||
==CT== | |||
===Key CT Findings in Orbital Cellulitis=== | |||
On [[CT]] scan of the head, orbital cellulitis is characterized by [[hyperdense|hyperdensity]] within low density periorbital fat and generelized elevation of the periobita. [[CT]] scan of the [[orbit]] is the imaging modality of choice for patients with orbital cellulitis. [[CT]] scan is also diagnostic of [[subperiosteal]] and [[Abscesses|orbital abscesses]] associated with orbital cellulitis. <ref name=eyewikiorbitalcellulitis>American Academy of Ophthalmology EyeWiki (2015)http://eyewiki.aao.org/Orbital_Cellulitis#Diagnostic_procedures</ref><ref name=radiopaedia>Radiopaedia (2016)http://radiopaedia.org/articles/orbital-infection</ref><ref name=merckmanualorbitalcellulitis>Merck Manual Professional Edition (2016)https://www.merckmanuals.com/professional/eye-disorders/orbital-diseases/preseptal-and-orbital-cellulitis</ref><ref name="pmid22346113">{{cite journal| author=Chaudhry IA, Al-Rashed W, Arat YO| title=The hot orbit: orbital cellulitis. | journal=Middle East Afr J Ophthalmol | year= 2012 | volume= 19 | issue= 1 | pages= 34-42 | pmid=22346113 | doi=10.4103/0974-9233.92114 | pmc=3277022 | url=http://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=22346113 }} </ref><ref name="pmid18936033">{{cite journal| author=LeBedis CA, Sakai O| title=Nontraumatic orbital conditions: diagnosis with CT and MR imaging in the emergent setting. | journal=Radiographics | year= 2008 | volume= 28 | issue= 6 | pages= 1741-53 | pmid=18936033 | doi=10.1148/rg.286085515 | pmc= | url=http://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=18936033 }} </ref><ref name="pmid8327669">{{cite journal| author=Yousem DM| title=Imaging of sinonasal inflammatory disease. | journal=Radiology | year= 1993 | volume= 188 | issue= 2 | pages= 303-14 | pmid=8327669 | doi=10.1148/radiology.188.2.8327669 | pmc= | url=http://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=8327669 }} </ref> | |||
===CT Examples of Orbital Cellulitis=== | |||
Examples of CT findings of orbital cellulitis:<ref name=radiopaedia>Radiopaedia (2016)http://radiopaedia.org/articles/orbital-infection</ref> | |||
[[Image:OC3.gif|600px|thumb|left|Preseptal and postseptal orbital cellulitis sagittal plane CT scan]] | |||
[[Image:OrbCellSPA.gif|600px|left|thumb|Left-sided orbital cellulitis and subperiosteal abscess on CT scan]] | |||
[[Image:OC2.gif|600px|thumb|left|Orbital cellulitis with peripheral abscess displacing the globe on sagittal plane CT scan]] | |||
<br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br> | |||
==References== | ==References== | ||
{{Reflist|2}} | {{Reflist|2}} | ||
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[[Category:Disease]] | [[Category:Disease]] | ||
[[Category:Ophthalmology]] | |||
[[Category:FinalQCRequired]] | |||
[[Category:Emergency mdicine]] | |||
[[Category:Up-To-Date]] | |||
[[Category:Infectious disease]] | [[Category:Infectious disease]] | ||
Latest revision as of 23:26, 29 July 2020
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American Roentgen Ray Society Images of Orbital cellulitis CT |
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Tarek Nafee, M.D. [2]
Overview
On CT scan of the head, orbital cellulitis is characterized by hyperdensity within low density periorbital fat and generalized elevation of the periobita. CT scan of the orbit is the imaging modality of choice for patients with orbital cellulitis. CT scan is also diagnostic of subperiosteal and orbital abscesses associated with orbital cellulitis.[1][2][3][4][5][6]
CT
Key CT Findings in Orbital Cellulitis
On CT scan of the head, orbital cellulitis is characterized by hyperdensity within low density periorbital fat and generelized elevation of the periobita. CT scan of the orbit is the imaging modality of choice for patients with orbital cellulitis. CT scan is also diagnostic of subperiosteal and orbital abscesses associated with orbital cellulitis. [1][2][3][4][5][6]
CT Examples of Orbital Cellulitis
Examples of CT findings of orbital cellulitis:[2]
References
- ↑ 1.0 1.1 American Academy of Ophthalmology EyeWiki (2015)http://eyewiki.aao.org/Orbital_Cellulitis#Diagnostic_procedures
- ↑ 2.0 2.1 2.2 Radiopaedia (2016)http://radiopaedia.org/articles/orbital-infection
- ↑ 3.0 3.1 Merck Manual Professional Edition (2016)https://www.merckmanuals.com/professional/eye-disorders/orbital-diseases/preseptal-and-orbital-cellulitis
- ↑ 4.0 4.1 Chaudhry IA, Al-Rashed W, Arat YO (2012). "The hot orbit: orbital cellulitis". Middle East Afr J Ophthalmol. 19 (1): 34–42. doi:10.4103/0974-9233.92114. PMC 3277022. PMID 22346113.
- ↑ 5.0 5.1 LeBedis CA, Sakai O (2008). "Nontraumatic orbital conditions: diagnosis with CT and MR imaging in the emergent setting". Radiographics. 28 (6): 1741–53. doi:10.1148/rg.286085515. PMID 18936033.
- ↑ 6.0 6.1 Yousem DM (1993). "Imaging of sinonasal inflammatory disease". Radiology. 188 (2): 303–14. doi:10.1148/radiology.188.2.8327669. PMID 8327669.