Related Experiment Video
Updated: Aug 1, 2026

10:44
Modeling Intracerebral Hemorrhage in Mice: Injection of Autologous Blood or Bacterial Collagenase
Published on: September 22, 2012
[Cerebellar and brainstem hypoperfusion in Bickerstaff's brainstem encephalitis: a case report]
Koji Yoshida1, Hideo Terasawa1, Hirotaka Shimizu1
1Department of Neurology, Hyogo Brain and Heart Center.
Rinsho Shinkeigaku = Clinical Neurology
|October 2, 2018
Summary
Bickerstaff
Area of Science:
- Neurology
- Immunology
Background:
- Bickerstaff's brainstem encephalitis (BBE) is a rare autoimmune neurological disorder.
- It is characterized by acute onset of ophthalmoplegia, ataxia, and altered consciousness.
Observation:
- A 16-year-old male presented with gastrointestinal symptoms followed by fever, headache, and coma.
- Clinical symptoms resolved with immunotherapy, but ophthalmoplegia and ataxia emerged during recovery.
Findings:
- High titers of anti-GQ1b IgG autoantibodies confirmed BBE diagnosis.
- Brain 123I-IMP SPECT revealed reversible hypoperfusion in the brainstem and cerebellum.
Implications:
- This case highlights the diagnostic utility of anti-GQ1b antibodies in BBE.
- SPECT findings suggest reversible brainstem and cerebellar dysfunction in BBE.
Keywords:
Bickerstaff’s brainstem encephalitisbrain perfusion SPECTbrainstemcerebellumconscious disturbanceMore Related Videos
Related Concept Videos
Arboviral Encephalitis
Arboviral encephalitis refers to brain inflammation caused by arthropod-borne viruses, particularly those transmitted through mosquito vectors. Among these, West Nile virus (WNV), a member of the Flaviviridae family, is a significant public health concern. WNV is an enveloped, positive-sense, single-stranded RNA virus. Human infection typically begins when an infected mosquito introduces the virus into the dermis during feeding. The primary transmission cycle involves birds as amplifying hosts...
Bacterial Meningitis I: Introduction
Bacterial meningitis is a severe, life-threatening inflammation of the meninges, particularly the pia mater and arachnoid mater, affecting the subarachnoid space, ventricles, and cerebrospinal fluid (CSF). If untreated, it can lead to significant neurological complications or death.Causative AgentsCommon pathogens vary with age and immune status. In adults, major organisms include Streptococcus pneumoniae, Neisseria meningitidis, and Haemophilus influenzae. Streptococcus agalactiae (group B...
Encephalitis l: Introduction
Encephalitis is inflammation of the brain parenchyma, most often due to infections or autoimmune processes. It presents with neuropsychiatric features such as fever, altered mental status, behavioral changes, cognitive dysfunction, seizures, focal deficits, and sometimes autonomic instability. In some cases, the meninges are also involved, resulting in meningoencephalitis.Infectious CausesInfectious encephalitis is most commonly viral but can also result from bacterial, fungal, or parasitic...
Encephalitis ll: Pathophysiology
Encephalitis is inflammation of the brain parenchyma caused by direct viral invasion or immune-mediated mechanisms triggered by infections or tumors. Both processes lead to neuronal injury, disrupted neurotransmission, and diverse neurological symptoms, often with overlapping clinical and pathological features.Autoimmune EncephalitisIn autoimmune encephalitis, antibodies target neuronal antigens on cell surfaces, synapses, or within neurons. A key example is anti-NMDAR encephalitis, which can...
Cerebral Edema ll: Pathophysiology
Vasogenic edema is a major form of cerebral edema characterized by abnormal accumulation of fluid in the brain’s extracellular space due to disruption of the blood–brain barrier (BBB). The BBB is a specialized structure composed of endothelial cells connected by tight junctions, supported by astrocytic endfeet and a basement membrane. Under normal conditions, it tightly regulates the movement of ions, proteins, and solutes between the bloodstream and brain parenchyma. When this barrier loses...
Cytotoxic Edema: Pathophysiology
Cytotoxic edema is a form of cerebral edema characterized by intracellular swelling of neurons, astrocytes, and other glial cells. It develops when the mechanisms responsible for maintaining ionic gradients across the cell membrane become impaired. Under normal physiological conditions, the sodium–potassium ATPase actively transports sodium ions out of the cell and potassium ions into the cell, preserving osmotic balance and enabling electrical signaling. This pump requires a continuous supply...

