Brain abscess CT: Difference between revisions
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__NOTOC__ | __NOTOC__ | ||
{{CMG}} | {{CMG}}; {{AE}} {{FH}} | ||
{{Brain abscess}} | {{Brain abscess}} | ||
==Overview== | ==Overview== | ||
The diagnosis of brain abscesses is established by a [[computed tomography]] (CT) | The diagnosis of brain abscesses is established by a [[computed tomography]] (CT) scan with contrast. | ||
==CT== | ==CT== | ||
CT scans can be used to evaluate all cranial structures including the paranasal sinuses, mastoids, and the middle ear.They can detect edema, hydrocephalus, shifts, or ventricular ruptures. At the initial phase of the inflammation ( | CT scans can be used to evaluate all cranial structures including the [[paranasal sinuses]], mastoids, and the middle ear.<ref>{{Citation | ||
| last1 = Schlossberg | |||
| first1 = David | |||
| lastauthoramp = yes | |||
| title = Clinical Infectious Disease | |||
| publisher = Cambridge University Press | |||
| place = New York, New York | |||
| edition = 1st | |||
| year = 2008 | |||
}}</ref> They can detect [[edema]], [[hydrocephalus]], shifts, or ventricular ruptures. At the initial phase of the inflammation (referred to as [[cerebritis]]), the immature lesion does not have a capsule and it may be difficult to distinguish it from other space-occupying lesions or infarcts of the brain. Within 4-5 days, the [[inflammation]] and the concomitant dead brain tissue are surrounded with a capsule, which gives the lesion the famous ring-enhancing appearance on CT examination with contrast (since intravenously applied contrast material can not pass through the capsule, it is collected around the lesion and looks as a ring surrounding the relatively dark lesion). | |||
[[Lumbar puncture]] procedure, which is performed in many infectious disorders of the [[central nervous system]], is contraindicated in this condition because removing a certain portion of the [[cerebrospinal fluid]] (CSF) may alter the concrete [[intracranial pressure]] balances and cause a part of the brain tissue to move out of the skull ([[brain herniation]]).<ref>Diagnosis, Brain Abscess, July 21, 2015 https://en.wikipedia.org/wiki/Brain_abscess#Treatment Accessed on October 19, 2015</ref> | |||
==References== | ==References== | ||
{{Reflist|2}} | {{Reflist|2}} | ||
{{WH}} | |||
{{WS}} | |||
[[Category:Disease]] | [[Category:Disease]] | ||
[[Category:Up-To-Date]] | |||
[[Category:Neurology]] | [[Category:Neurology]] | ||
[[Category:Neurosurgery]] | |||
[[Category:Emergency medicine]] | |||
[[Category:Infectious disease]] | [[Category:Infectious disease]] | ||
Latest revision as of 20:40, 29 July 2020
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Farwa Haideri [2]
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Brain abscess Microchapters |
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Brain abscess CT On the Web |
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American Roentgen Ray Society Images of Brain abscess CT |
Overview
The diagnosis of brain abscesses is established by a computed tomography (CT) scan with contrast.
CT
CT scans can be used to evaluate all cranial structures including the paranasal sinuses, mastoids, and the middle ear.[1] They can detect edema, hydrocephalus, shifts, or ventricular ruptures. At the initial phase of the inflammation (referred to as cerebritis), the immature lesion does not have a capsule and it may be difficult to distinguish it from other space-occupying lesions or infarcts of the brain. Within 4-5 days, the inflammation and the concomitant dead brain tissue are surrounded with a capsule, which gives the lesion the famous ring-enhancing appearance on CT examination with contrast (since intravenously applied contrast material can not pass through the capsule, it is collected around the lesion and looks as a ring surrounding the relatively dark lesion).
Lumbar puncture procedure, which is performed in many infectious disorders of the central nervous system, is contraindicated in this condition because removing a certain portion of the cerebrospinal fluid (CSF) may alter the concrete intracranial pressure balances and cause a part of the brain tissue to move out of the skull (brain herniation).[2]
References
- ↑ Schlossberg, David (2008), Clinical Infectious Disease (1st ed.), New York, New York: Cambridge University Press
- ↑ Diagnosis, Brain Abscess, July 21, 2015 https://en.wikipedia.org/wiki/Brain_abscess#Treatment Accessed on October 19, 2015