Autoimmune encephalitis: Difference between revisions

From WikiMD's Wellness Encyclopedia

No edit summary
Tag: visualeditor-wikitext
 
CSV import
 
(One intermediate revision by the same user not shown)
Line 1: Line 1:
{{SI}}
{{Infobox medical condition
| name            = Autoimmune encephalitis
| image          = [[File:CT_scan_Rasmussen's_encephalitis.png|left|thumb|CT scan of Rasmussen's encephalitis, a type of autoimmune encephalitis]]
| caption        = CT scan showing [[Rasmussen's encephalitis]]
| field          = [[Neurology]]
| symptoms        = [[Seizures]], [[memory loss]], [[confusion]], [[hallucinations]], [[movement disorders]]
| complications  = [[Cognitive impairment]], [[neurological deficits]]
| onset          = Varies, can be acute or subacute
| duration        = Can be chronic
| causes          = [[Autoimmune disease]]
| risks          = [[Genetic predisposition]], [[viral infections]]
| diagnosis      = [[Clinical evaluation]], [[MRI]], [[EEG]], [[CSF analysis]], [[antibody testing]]
| differential    = [[Infectious encephalitis]], [[paraneoplastic syndrome]], [[primary psychiatric disorders]]
| treatment      = [[Immunotherapy]], [[corticosteroids]], [[plasmapheresis]], [[IVIG]], [[anticonvulsants]]
| prognosis      = Variable, depends on type and response to treatment
| frequency      = Rare
}}
* Inflammation of the [[brain]] secondary to an immune response triggered by the body itself.
* Inflammation of the [[brain]] secondary to an immune response triggered by the body itself.
* Autoimmune encephalitis refers to a group of conditions that occur when the body's  mistakenly attacks healthy brain, leading to inflammation of the brain.  
* Autoimmune encephalitis refers to a group of conditions that occur when the body's ¬†mistakenly attacks healthy brain, leading to inflammation of the brain.  
[[File:CNS lymphocytic encephalitis FFPE section.jpg|alt=lymphocytic encephalitis|thumb|lymphocytic encephalitis]]
[[File:CNS lymphocytic encephalitis FFPE section.jpg|alt=lymphocytic encephalitis|left|thumb|lymphocytic encephalitis]]
<youtube>
<youtube>
title='''{{PAGENAME}}'''
title='''{{PAGENAME}}'''
Line 11: Line 29:
height=600
height=600
</youtube>
</youtube>
== Causes ==
== Causes ==
* [[Rasmussen encephalitis]]
* [[Rasmussen encephalitis]]
Line 20: Line 37:
* [[Sydenham's chorea]]
* [[Sydenham's chorea]]
* [[PANS]] or [[PANDAS]]
* [[PANS]] or [[PANDAS]]
== Signs and symptoms ==
== Signs and symptoms ==
People with autoimmune encephalitis may have various neurologic and/or psychiatric symptoms.  
People with autoimmune encephalitis may have various neurologic and/or psychiatric symptoms.  
Neurologic symptoms may include impaired [[memory]] and [[cognition]], abnormal movements, and/or problems with balance, speech, or vision.
Neurologic symptoms may include impaired [[memory]] and [[cognition]], abnormal movements, and/or problems with balance, speech, or vision.
===Psychiatric symptoms ===
===Psychiatric symptoms ===
* Psychiatric symptoms may include psychosis, aggression, inappropriate sexual behaviors, panic attacks, compulsive behaviors, euphoria or fear. Symptoms may fluctuate, but often progress over days to a few weeks.  
* Psychiatric symptoms may include psychosis, aggression, inappropriate sexual behaviors, panic attacks, compulsive behaviors, euphoria or fear. Symptoms may fluctuate, but often progress over days to a few weeks.  
* Symptoms can progress to loss of consciousness or even coma.
* Symptoms can progress to loss of consciousness or even coma.
* Autoimmune encephalitis may be associated with  to  on the surface of nerve cells, or within nerve cells. Some of these proteins are involved in passing signals between nerve cells.
* Autoimmune encephalitis may be associated with  to  on the surface of nerve cells, or within nerve cells. Some of these proteins are involved in passing signals between nerve cells.
* In some cases it occurs in association with  (a paraneoplastic syndrome).
* In some cases it occurs in association with  (a paraneoplastic syndrome).
 
Autoimmune encephalitis generally occurs sporadically, in people with no of the condition.
Autoimmune encephalitis generally occurs sporadically, in people with no of the condition.
* ==Treatment==
* ==Treatment==
* Treatment may involve intravenous immunosuppressive therapy, and  removal when necessary.  
* Treatment may involve intravenous immunosuppressive therapy, and ¬†removal when necessary.  
* Early treatment decreases the likelihood for long-term complications, speeds recovery, and reduces the risk of recurrence (relapse). If not treated, the condition can lead to progressive neurologic deterioration and loss of life.
* Early treatment decreases the likelihood for long-term complications, speeds recovery, and reduces the risk of recurrence (relapse). If not treated, the condition can lead to progressive neurologic deterioration and loss of life.
==Diagnosis==
==Diagnosis==
Diagnosis of autoimmune encephalitis can be made when all three of the following criteria have been met:
Diagnosis of autoimmune encephalitis can be made when all three of the following criteria have been met:
#. Subacute onset (rapid progression of less than 3 months) of working memory deficits (short-term memory loss), altered mental status, or psychiatric symptoms.
#. Subacute onset (rapid progression of less than 3 months) of working memory deficits (short-term memory loss), altered mental status, or psychiatric symptoms.
#. At least one of the following:
#. At least one of the following:
* New focal  findings
* New focal  findings
* not explained by a previously known seizure disorder
* not explained by a previously known seizure disorder
* CSF pleocytosis ( count of more than five  per mm3)
* CSF pleocytosis ( count of more than five  per mm3)
* features suggestive of encephalitis
* features suggestive of encephalitis
#. Reasonable exclusion of alternative causes
#. Reasonable exclusion of alternative causes
{{Scholia|topic}}
{{Diseases of the nervous system}}
{{Diseases of the nervous system}}
{{Authority control}}
[[Category:Encephalitis| ]]
[[Category:Encephalitis| ]]
[[Category:Infectious diseases]]
[[Category:Infectious diseases]]

Latest revision as of 16:50, 4 April 2025

Editor-In-Chief: Prab R Tumpati, MD
Obesity, Sleep & Internal medicine
Founder, WikiMD Wellnesspedia &
W8MD medical weight loss NYC and sleep center NYC

Autoimmune encephalitis
CT scan of Rasmussen's encephalitis, a type of autoimmune encephalitis
Synonyms N/A
Pronounce N/A
Specialty N/A
Symptoms Seizures, memory loss, confusion, hallucinations, movement disorders
Complications Cognitive impairment, neurological deficits
Onset Varies, can be acute or subacute
Duration Can be chronic
Types N/A
Causes Autoimmune disease
Risks Genetic predisposition, viral infections
Diagnosis Clinical evaluation, MRI, EEG, CSF analysis, antibody testing
Differential diagnosis Infectious encephalitis, paraneoplastic syndrome, primary psychiatric disorders
Prevention N/A
Treatment Immunotherapy, corticosteroids, plasmapheresis, IVIG, anticonvulsants
Medication N/A
Prognosis Variable, depends on type and response to treatment
Frequency Rare
Deaths N/A


  • Inflammation of the brain secondary to an immune response triggered by the body itself.
  • Autoimmune encephalitis refers to a group of conditions that occur when the body's ¬†mistakenly attacks healthy brain, leading to inflammation of the brain.
lymphocytic encephalitis
lymphocytic encephalitis

Causes[edit]

Signs and symptoms[edit]

People with autoimmune encephalitis may have various neurologic and/or psychiatric symptoms. Neurologic symptoms may include impaired memory and cognition, abnormal movements, and/or problems with balance, speech, or vision.

Psychiatric symptoms[edit]

  • Psychiatric symptoms may include psychosis, aggression, inappropriate sexual behaviors, panic attacks, compulsive behaviors, euphoria or fear. Symptoms may fluctuate, but often progress over days to a few weeks.
  • Symptoms can progress to loss of consciousness or even coma.
  • Autoimmune encephalitis may be associated with ¬†to ¬†on the surface of nerve cells, or within nerve cells. Some of these proteins are involved in passing signals between nerve cells.
  • In some cases it occurs in association with ¬†(a paraneoplastic syndrome).

Autoimmune encephalitis generally occurs sporadically, in people with no of the condition.

  • ==Treatment==
  • Treatment may involve intravenous immunosuppressive therapy, and ¬†removal when necessary.
  • Early treatment decreases the likelihood for long-term complications, speeds recovery, and reduces the risk of recurrence (relapse). If not treated, the condition can lead to progressive neurologic deterioration and loss of life.

Diagnosis[edit]

Diagnosis of autoimmune encephalitis can be made when all three of the following criteria have been met:

  1. . Subacute onset (rapid progression of less than 3 months) of working memory deficits (short-term memory loss), altered mental status, or psychiatric symptoms.
  2. . At least one of the following:
  • New focal ¬†findings
  • not explained by a previously known seizure disorder
  • CSF pleocytosis ( count of more than five ¬†per mm3)
  • features suggestive of encephalitis
  1. . Reasonable exclusion of alternative causes
This article is a medical stub. You can help WikiMD by expanding it!
PubMed
Wikipedia