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Related Concept Videos

Cerebral Edema ll: Pathophysiology01:22

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...
Cerebral Edema l: Introduction01:19

Cerebral Edema l: Introduction

Cerebral edema is a pathological increase in brain water content that disrupts intracranial pressure regulation and impairs neurological function. Because the cranial vault is rigid, even modest increases in tissue volume can compromise cerebral perfusion, distort neural structures, and initiate secondary injury. Cerebral edema develops through four principal mechanisms: vasogenic, cytotoxic, interstitial, and ionic.Vasogenic EdemaVasogenic edema arises from disruption of the blood–brain...
Hemorrhagic Stroke l: Introduction01:17

Hemorrhagic Stroke l: Introduction

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...
Increased Intracranial Pressure ll: Pathophysiology01:29

Increased Intracranial Pressure ll: Pathophysiology

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 with...
Diabetic Retinopathy01:27

Diabetic Retinopathy

DefinitionDiabetic retinopathy is a microvascular complication of diabetes affecting the retinal blood vessels.Risk FactorsDiabetic retinopathy is present in almost all individuals with type 1 diabetes and more than 60% of those with type 2 diabetes after two decades of disease.The risk increases with poor glycemic control, hypertension, dyslipidemia, smoking, pregnancy, and puberty.Although cataracts and glaucoma are also more frequent in people with diabetes, retinopathy remains the leading...
Hemorrhagic Stroke ll: Pathophysiology01:29

Hemorrhagic Stroke ll: Pathophysiology

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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Updated: May 28, 2026

Isolation and Cannulation of Cerebral Parenchymal Arterioles
09:49

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Published on: May 23, 2016

Cerebral proliferative angiopathy.

Michael P Marks1, Gary K Steinberg

  • 1Department of Radiology and Neurosurgery, Stanford University School of Medicine, Stanford, California 94305, USA. m.marks@stanford.edu

Journal of Neurointerventional Surgery
|October 13, 2011
PubMed
Summary
This summary is machine-generated.

Cerebral proliferative angiopathy, a rare vascular lesion, involves diffuse shunting and can mimic brain arteriovenous malformations. This case documents its progressive development and associated neurological decline.

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Area of Science:

  • Neurology
  • Vascular Biology
  • Radiology

Background:

  • Cerebral proliferative angiopathy (CPA) is a rare cerebrovascular lesion characterized by diffuse intravascular shunting.
  • Distinguishing CPA from brain arteriovenous malformations (bAVMs) is critical for accurate diagnosis and management.
  • Understanding the natural history and progression of CPA is essential.

Observation:

  • A unique case of CPA is presented, demonstrating the progressive development of hypervascular shunting.
  • The lesion extensively involved large portions of the left cerebral hemisphere.
  • The patient exhibited angiographic and laboratory evidence of active angiogenesis.

Findings:

  • The progressive nature of CPA was documented over time.
  • Neurological deterioration correlated directly with the lesion's development and increased vascularity.
  • This represents the first documented case detailing the proliferative changes in CPA.

Implications:

  • This case highlights the importance of considering CPA in the differential diagnosis of complex cerebrovascular lesions.
  • Further research into the pathogenesis and treatment of CPA is warranted.
  • Understanding CPA's progressive nature may improve patient outcomes through earlier detection and intervention.