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Cerebral Edema ll: Pathophysiology01:22

Cerebral Edema ll: Pathophysiology

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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...
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Increased intracranial pressure (ICP) refers to a potentially life-threatening rise in pressure inside the skull. This usually happens when there is a major change in the volume of brain tissue, blood, or cerebrospinal fluid (CSF) — the three components inside the skull. According to the Monro-Kellie doctrine, if the volume of one component increases, the volumes of the other components must decrease to maintain normal pressure. If this does not happen, ICP rises.The process often begins...
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Intracranial hypertension is a sustained elevation of intracranial pressure (ICP) above 22 mm Hg. In supine adults, normal ICP is ~7–15 mm Hg.The rigid, nonexpandable cranium contains three components—brain tissue, blood, and cerebrospinal fluid (CSF)—that total ~1,700 mL in a typical adult: 1,400 mL brain (~80%), 150 mL blood (~10%), and 150 mL CSF (~10%). According to the Monro–Kellie doctrine, total intracranial volume is effectively fixed. When one component...
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A brain abscess is a focal, intracerebral infection characterized by a localized collection of pus within the brain parenchyma, resulting from microbial invasion and the body’s inflammatory response. It progresses through stages: early and late cerebritis, followed by early and late capsule formation, reflecting tissue destruction, immune response, and eventual encapsulation.Etiology and PathogenesisCausative organisms vary with source and host factors, often involving polymicrobial...
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There are hollow fluid-filled cavities known as ventricles deep inside the human brain. There are two lateral ventricles, one in each cerebral hemisphere, and each has three different projections — the anterior, inferior, and posterior horns visible from the lateral side. A thin membrane called the septum pellucidum separates the two lateral ventricles. The slender third ventricle in the diencephalon is connected to each lateral ventricle via a channel called the interventricular foramen.
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Giant mesencephalothalamic virchow-robin spaces causing obstructive hydrocephalus. A case report.

F U Ahmad1, A Garg, M Singh

  • 1All India Institute of Medical Sciences; New Delhi, India - drajaygarg@gmail.com.

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Summary

Giant Virchow-Robin spaces in the brain are rare but can cause hydrocephalus. A case report details a woman

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Area of Science:

  • Neuroscience
  • Radiology
  • Neurosurgery

Background:

  • Virchow-Robin spaces are perivascular spaces that accompany arteries into the brain.
  • These spaces are typically small but visible on high-resolution MRI across all age groups.

Purpose of the Study:

  • To report a rare case of giant mesencephalothalamic Virchow-Robin spaces.
  • To highlight the potential complications and management of such rare findings.

Main Methods:

  • Case report of a 40-year-old woman.
  • Review of medical history and imaging findings.
  • Description of surgical intervention and patient outcome.

Main Results:

  • The patient presented with giant mesencephalothalamic Virchow-Robin spaces.
  • These spaces led to obstructive hydrocephalus, necessitating cerebrospinal fluid (CSF) diversion.
  • Successful treatment with a right ventriculoperitoneal shunt was performed.

Conclusions:

  • Giant Virchow-Robin spaces are a rare condition that can lead to significant neurological complications like hydrocephalus.
  • Surgical CSF diversion, such as ventriculoperitoneal shunting, can be an effective treatment.
  • Complete patient recovery was achieved after the intervention.