Also known as Rasmussen's syndrome, is a rare and severe neurological disorder that primarily affects children and young adults. It is characterized by chronic inflammation of one hemisphere of the brain, leading to progressive neurological deficits and seizures. The exact cause of Rasmussen's encephalitis is not fully understood, but it is believed to involve an autoimmune response, where the immune system mistakenly attacks healthy brain tissue.


  • Autoimmune Response: One of the prevailing theories is that Rasmussen's encephalitis is an autoimmune disorder. In this scenario, the immune system mistakenly identifies healthy brain tissue as a threat and launches an immune response against it. This response can lead to chronic inflammation and damage to the affected hemisphere of the brain.
  • Viral Trigger: Some researchers speculate that a viral infection could act as a trigger for the autoimmune response seen in Rasmussen's encephalitis. However, no specific virus has been consistently identified as the cause.
  • Genetic Factors: Genetic predisposition may play a role in making certain individuals more susceptible to developing Rasmussen's encephalitis. However, no specific genes have been definitively linked to the condition.
  • Environmental Factors: It's possible that certain environmental factors, such as exposure to toxins or infections, could contribute to the development of the autoimmune response in individuals who are genetically predisposed.
  • Immunological Dysfunction: Dysfunction of the immune system, particularly involving T cells, has been observed in individuals with Rasmussen's encephalitis. Abnormalities in the regulation of immune responses may contribute to the inflammatory processes seen in the disorder.


  • Unilateral Hemispheric Involvement: The inflammation and damage occur in only one hemisphere of the brain, typically leading to symptoms and deficits on the opposite side of the body.
  • Seizures: Seizures are a prominent and often early symptom of Rasmussen's encephalitis. These seizures can be difficult to control with medication.
  • Neurological Deficits: As the condition progresses, patients may experience various neurological deficits, including weakness, loss of motor skills, speech difficulties, and cognitive impairments.
  • Brain Atrophy: Over time, the affected hemisphere of the brain can shrink (atrophy) due to ongoing inflammation and damage.
  • Immunological Involvement: It is believed that the immune system's T cells play a role in attacking brain tissue. This immune response can lead to chronic inflammation and damage.

DIAGNOSIS: The diagnosis of Rasmussen's encephalitis is primarily based on clinical symptoms, brain imaging (such as MRI), and sometimes a brain biopsy to confirm the presence of inflammation.


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  7. Cocculus Indicus (Cocculus): Used for dizziness, motion sickness, and vertigo. It's also used for nervous exhaustion and sleep disturbances due to mental strain.
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