Brain abscess CT: Difference between revisions
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__NOTOC__ | __NOTOC__ | ||
{{CMG}} | {{CMG}}; {{AE}} {{FH}} | ||
{{Brain abscess}} | {{Brain abscess}} | ||
==Overview== | ==Overview== | ||
The diagnosis is established by a [[computed tomography]] (CT) | The diagnosis of brain abscesses is established by a [[computed tomography]] (CT) scan with contrast. | ||
==CT== | ==CT== | ||
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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Diagnosis |
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Treatment |
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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