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Related Concept Videos

Hemorrhagic Stroke l: Introduction01:17

Hemorrhagic Stroke l: Introduction

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A hemorrhagic stroke is an acute neurological event that occurs when a weakened cerebral blood vessel ruptures, allowing blood to accumulate within or around the brain. The sudden release of blood forms a focal hematoma that increases intracranial pressure, displaces neural tissue, and can obstruct cerebrospinal fluid pathways. These effects may be compounded by intraventricular extension of the hemorrhage, cerebral edema, or compression of adjacent structures, all of which contribute to...
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Ischemic Stroke l: Introduction01:15

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Ischemic stroke is an acute cerebrovascular condition in which blood flow to a brain region is suddenly interrupted, leading to tissue infarction. Neurons depend on continuous oxygen and glucose supply, so even brief reductions in perfusion cause energy failure, ionic imbalance, and irreversible injury. Ischemic strokes are classified into thrombotic and embolic types based on their underlying mechanisms.Thrombotic MechanismsThrombotic stroke develops when a clot forms within a cerebral artery.
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Hemorrhagic Stroke ll: Pathophysiology01:29

Hemorrhagic Stroke ll: Pathophysiology

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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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Stroke: Introduction and Types01:29

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A stroke is an acute neurological event caused by the sudden disruption of cerebral blood flow, leading to rapid loss of neuronal function. Neurons depend on continuous oxygen and glucose supply, so even brief interruptions can cause irreversible injury within minutes. Strokes are classified into ischemic and hemorrhagic types.Ischemic StrokeIschemic strokes are most common and occur due to arterial occlusion, depriving brain tissue of oxygen and nutrients. This leads to energy failure, ionic...
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Ischemic Stroke ll: Pathophysiology01:15

Ischemic Stroke ll: Pathophysiology

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An ischemic stroke occurs when a cerebral blood vessel becomes obstructed, most often by a thrombus or embolus, interrupting the delivery of oxygen and glucose to brain tissue. Because neurons rely on continuous aerobic metabolism, energy failure begins within minutes of reduced perfusion. The region receiving the least blood flow becomes the infarct core, an area of irreversible cellular death. Surrounding this core lies the penumbra, a zone of hypoperfused but still viable tissue that is...
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Transient Ischemic Attack l: Introduction01:26

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A transient ischemic attack (TIA) is a brief episode of neurological dysfunction caused by a temporary, focal reduction in cerebral blood flow. Although symptoms resemble those of an ischemic stroke, the interruption in perfusion is short-lived and does not cause permanent infarction. TIAs are clinically important because they often serve as early warning events for future stroke.Mechanisms of Transient Cerebral IschemiaTransient cerebral ischemia may arise through several mechanisms. One...
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Cryptogenic stroke in hanging. A case report.

F G Garaci1, G Bazzocchi, L Velari

  • 1Department of Diagnostic Imaging, Interventional Radiology and Radiation Therapy, University of Rome "Tor Vergata"; Rome, Italy - gabriele.bazzocchi@hotmail.it.

The Neuroradiology Journal
|November 12, 2013
PubMed
Summary
This summary is machine-generated.

This case study details unique unilateral brain lesions following a suicide attempt by hanging, suggesting an ischemic-arterial event as the cause, unlike typical bilateral findings.

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Area of Science:

  • Neurology
  • Radiology
  • Forensic Medicine

Background:

  • Suicide attempts by hanging commonly result in bilateral brain lesions due to hypoxic-ischemic injury.
  • Previous neuroimaging studies have consistently reported bilateral findings in such cases.

Purpose of the Study:

  • To report a unique case of unilateral brain lesions following a suicide attempt by hanging.
  • To investigate the potential cause of these unilateral lesions.

Main Methods:

  • Computed tomography (CT) scan.
  • 3.0 T Magnetic Resonance Imaging (MRI) including T2-weighted, FLAIR, and diffusion-weighted sequences.

Main Results:

  • CT revealed a right thalamic low-density area without hemorrhage.
  • MRI demonstrated a right thalamic hyperintense lesion on T2-weighted and FLAIR images, with no restricted diffusion.
  • A smaller, similar lesion was identified in the left cerebellum.

Conclusions:

  • This is the first reported case of unilateral thalamic and cerebellar lesions after a hanging event.
  • The findings suggest an ischemic-arterial event, rather than global hypoxia, as the probable cause of the unilateral lesions.