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Related Concept Videos

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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Traumatic Brain Injury l: Introduction01:28

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DefinitionTraumatic brain injury, or TBI, is a disturbance of normal brain function induced by an external mechanical force, such as a direct blow to the head or a penetrating injury. It can affect both brain structure and function, producing a wide range of clinical outcomes. TBI is a heterogeneous condition, meaning its effects may differ based on the type, location, and severity of the injury.Basis of ClassificationTBI is classified based on severity, injury mechanism, or pathophysiology. In...
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Increased Intracranial Pressure l: Introduction01:14

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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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Brain Abscess l: Introduction01:26

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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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Increased Intracranial Pressure ll: Pathophysiology01:29

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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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A hemorrhagic stroke develops when a cerebral blood vessel ruptures, allowing blood to escape into the surrounding brain tissue, as in intracerebral hemorrhage (ICH), or into the subarachnoid space, as in subarachnoid hemorrhage (SAH). Because the skull is a rigid compartment, the sudden presence of extravascular blood rapidly increases intracranial pressure and compresses adjacent neural structures, leading to immediate tissue injury and impaired cerebral perfusion.Mass Effect and Primary...
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Traumatic orbital CSF leak.

Farzad Borumandi1

  • 1Department of Oral and Maxillofacial Surgery, Paracelsus Medical University, Salzburg, Austria.

BMJ Case Reports
|December 11, 2013
PubMed
Summary
This summary is machine-generated.

Orbital cerebrospinal fluid (CSF) leaks are rare after head trauma. This case highlights periorbital swelling as a key sign, emphasizing the need for considering orbital CSF leaks in diagnosis.

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Area of Science:

  • Neurosurgery
  • Ophthalmology
  • Emergency Medicine

Background:

  • Cerebrospinal fluid (CSF) leaks typically occur via the nose or ear after head trauma.
  • Orbital CSF leaks are uncommon and often underdiagnosed.
  • Prompt diagnosis and management are crucial for preventing complications.

Observation:

  • A 49-year-old woman presented with eyelid swelling and bruising after a minor fall impacting her right orbit.
  • CT revealed a non-displaced orbital roof fracture without intracranial bleeding or emphysema.
  • Clinical signs suggested a possible orbital CSF leak.

Findings:

  • MRI confirmed a small CSF fistula from the anterior cranial fossa to the right orbit.
  • The patient received conservative treatment.
  • Eyelid swelling resolved within 5 days.

Implications:

  • Orbital CSF leaks, though rare, should be considered in the differential diagnosis of periorbital swelling post-trauma.
  • Early identification can guide appropriate management and improve patient outcomes.
  • This case underscores the importance of advanced imaging in diagnosing subtle orbital injuries.