Brain abscess physical examination: Difference between revisions

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{{CMG}}
{{CMG}}; {{AE}} {{FH}}
{{Brain abscess}}
{{Brain abscess}}


==Overview==
==Overview==
Patients with brain abscess generally appear healthy. Most findings are neuromuscular in nature.


==Physical Examination==
==Physical Examination==
The symptoms of brain abscess are caused by a combination of increased [[intracranial pressure]] due to a space-occupying lesion ([[headache]], [[vomiting]], [[confusion]], [[coma]]), [[infection]] ([[fever]], [[fatigue]] etc.) and focal neurologic brain tissue damage ([[hemiparesis]], [[aphasia]] etc.). The symptoms and findings depend largely on the specific location of the [[abscess]] in the brain. An [[abscess]] in the [[cerebellum]], for instance, may cause additional complaints as a result of [[brain stem]] compression and [[hydrocephalus]]. [[Neurological examination]] may reveal a stiff neck in occasional cases (erroneously suggesting meningitis). The famous triad of [[fever]], headache and focal neurologic findings are highly suggestive of [[brain abscess]] but are observed only in a minority of the patients.<ref> Brain Abscess. Wikipedia (2015). https://en.wikipedia.org/wiki/Brain_abscess#Signs_and_symptoms Accessed on October 7, 2015</ref>
===Appearance of the patient===
The most frequent presenting symptoms are:<ref> Brain Abscess. Wikipedia (2015). https://en.wikipedia.org/wiki/Brain_abscess#Signs_and_symptoms Accessed on October 7, 2015</ref>
* The patient generally appears healthy, though may show signs of fatigue, drowsiness, or have speech difficulties.<ref name="urlBrain Abscess | Columbia Neurosurgery">{{cite web |url=http://www.columbianeurosurgery.org/conditions/brain-abscess/ |title=Brain Abscess &#124; Columbia Neurosurgery |format= |work= |Accessed on October 30, 2015=}}</ref>  
 
===Vital signs===
*[[Dysarthria]]
*[[Fevers]]
*[[Headache]]
*[[Headache]]
*[[Drowsiness]]
**Most common complaint, seen in greater than 75% of patients
*[[Mental confusion|confusion]]
 
*[[Seizure]]s
===Neck===
* Stiffness in neck (in occasional cases)
 
===Neuromuscular===
*[[Altered mental status]]
*[[Hemiparesis]]
*[[Hemiparesis]]
* Speech difficulties and fever
** Approximately 30-50% of patients will have focal neurological deficits
 
*Eventual [[coma]]
As a summary the presenting signs and symptoms relate to the size and location of the [[abscess]] and the virulence of the bug.
*[[Aphasia]]
* [[Headache]] is the most common complaint, seen in greater than 75% of patients.
*[[Ataxia]]
:* There are no specific descriptors of an abscess headache accounting for one of the factors that often delays the diagnosis.
* Signs of increased [[ICP]] (N/V, [[lethargy]] etc.)<ref name="urlBrain Abscess | Columbia Neurosurgery">{{cite web |url=http://www.columbianeurosurgery.org/conditions/brain-abscess/ |title=Brain Abscess &#124; Columbia Neurosurgery |format= |work= |Accessed on October 30, 2015=}}</ref> 
:* The BA is usually not severe, unless the [[abscess]] ruptures into a ventricle, at which time [[meningismus]] and death often develop as well.
** This is an indication for immediate intervention.
:* The classic triad of BA, [[fever]] and a focal neurologic deficit are seen in < 50% of cases.
* Signs of increased [[ICP]] (N/V, [[lethargy]] etc.) can be seen in up to 50% of patients, and is usually an indication for immediate intervention.
:* [[Papilledema]], however, is seen in < 25% of cases.
* [[Fever]] is present in 40 – 50% of cases, and hence its absence should not be used to exclude the Dx.
* Approximately 30 - 50% of patients will have focal neuro deficits (most commonly hemiparesis).
* 25% of patients present with new-onset [[seizure]]s.


==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]]
[[Category:Neurosurgery]]
[[Category:Needs overview]]
{{WH}}
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Latest revision as of 20:41, 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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Overview

Patients with brain abscess generally appear healthy. Most findings are neuromuscular in nature.

Physical Examination

Appearance of the patient

  • The patient generally appears healthy, though may show signs of fatigue, drowsiness, or have speech difficulties.[1]

Vital signs

Neck

  • Stiffness in neck (in occasional cases)

Neuromuscular

References

  1. 1.0 1.1 "Brain Abscess | Columbia Neurosurgery".

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