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Related Concept Videos

Anatomy of the Brain: Ventricles01:18

Anatomy of the Brain: Ventricles

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. The...
Cranial and Spinal Meninges01:19

Cranial and Spinal Meninges

The cranial and spinal meninges are complex protective structures surrounding the central nervous system (CNS), consisting of the brain and spinal cord. These meninges consist of the dura mater, the arachnoid mater, and the pia mater. They protect the CNS, provide structural support, and aid in circulating cerebrospinal fluid (CSF).
Cranial Meninges
These meningeal layers cover the cranium. The dura mater is the outermost layer of cranial meninges. It is a thick and durable membrane of dense...
Cryptococcal Meningitis01:27

Cryptococcal Meningitis

Cryptococcal meningitis is a life-threatening opportunistic infection predominantly associated with HIV/AIDS, accounting for over 100,000 deaths annually worldwide. However, it also affects individuals with other forms of immunosuppression, including those undergoing immunosuppressive therapy, organ transplant recipients, patients with innate immunodeficiencies, and individuals with hematological disorders. The infection is caused mainly by Cryptococcus neoformans and Cryptococcus gattii,...
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...
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Brain Abscess l: Introduction

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 infections,...
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Increased Intracranial Pressure l: Introduction

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 expands, CSF and venous blood...

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Endoscopic Approach for Colloid Cyst Resection
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Published on: May 23, 2025

Intraventricular cystic meningioma.

Prabal Deb1, Hirdesh Sahani, Harjinder Singh Bhatoe

  • 1Department of Pathology, Armed Forces Medical College, Pune, India.

Journal of Cancer Research and Therapeutics
|July 13, 2010
PubMed
Summary

This case report details an intraventricular cystic meningioma in a 45-year-old male. Surgical removal was successful, highlighting this rare tumor presentation.

Area of Science:

  • Neurology
  • Neurosurgery
  • Oncology

Background:

  • Intraventricular meningiomas are rare tumors, typically arising from the choroid plexus or ependymal lining.
  • Cystic components within intraventricular meningiomas are uncommon, posing diagnostic and surgical challenges.

Observation:

  • A 45-year-old male presented with a one-month history of global headache, memory loss, and behavioral changes.
  • Neurological examination revealed no deficits. Neuroimaging demonstrated a left lateral ventricular mass with mixed solid and cystic features.

Findings:

  • Histopathological analysis confirmed a meningothelial meningioma, a benign subtype, with no atypical features.
  • The tumor was completely excised using an anterior transcallosal surgical approach.

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Implications:

  • This case underscores the importance of considering intraventricular cystic meningiomas in the differential diagnosis of ventricular masses.
  • Complete surgical resection is the primary treatment, with a favorable prognosis for benign meningiomas.
  • Further research into the pathogenesis and optimal management of cystic intraventricular meningiomas is warranted.