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Related Concept Videos

Hemorrhagic Stroke l: Introduction01:17

Hemorrhagic Stroke l: Introduction

20
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...
20
Hemorrhagic Stroke ll: Pathophysiology01:29

Hemorrhagic Stroke ll: Pathophysiology

30
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...
30

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Related Experiment Video

Updated: May 5, 2026

Minimally Invasive Thumb-sized Pterional Craniotomy for Surgical Clip Ligation of Unruptured Anterior Circulation Aneurysms
11:58

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Interhemispheric transcallosal approach for hemorrhagic colloid cyst.

José Orlando De Melo Junior1, José Alberto Landeiro2

  • 1Department of Neurosurgery, Paulo Niemeyer State Brain Institute, Rio de Janeiro, Brazil.

Surgical Neurology International
|October 2, 2025
PubMed
Summary

Hemorrhagic colloid cysts of the third ventricle are rare but can cause acute symptoms. Microsurgical resection offers a high success rate for these complex cases, leading to improved patient outcomes.

Area of Science:

  • Neurosurgery
  • Neurology
  • Pathology

Background:

  • Colloid cysts of the third ventricle are rare intracranial lesions, typically located near the foramen of Monro.
Keywords:
Colloid cystHemorrhageSurgeryThird ventricleTranscallosal approach

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  • Over half of patients present with symptoms of obstructive hydrocephalus, including headache, nausea, and cognitive decline.
  • While sudden deterioration is rare, acute intracystic hemorrhage can cause rapid clinical decline.