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Anatomy of the Brain: Ventricles

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.

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Updated: Mar 22, 2026

Longitudinal Intravital Imaging of Brain Tumor Cell Behavior in Response to an Invasive Surgical Biopsy

Longitudinal Intravital Imaging of Brain Tumor Cell Behavior in Response to an Invasive Surgical Biopsy

Published on: May 3, 2019

Intraventricular Tumors.

Amit Agarwal¹, Sangam Kanekar²

¹Department of Radiology, Penn State University, Hershey, PA.

Seminars in Ultrasound, CT, and MR

|April 12, 2016

Summary

This summary is machine-generated.

Intraventricular tumors, diverse brain neoplasms, often present benignly with hydrocephalus. Imaging and patient data help identify common types, guiding diagnosis and treatment.

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Area of Science:

Neurology
Neurosurgery
Oncology

Background:

Intraventricular tumors are a distinct class of intracranial neoplasms.
They exhibit a broad pathological spectrum, encompassing neuroepithelial and non-neuroepithelial types.
Many intraventricular tumors are clinically benign, often manifesting with headaches or hydrocephalus.

Purpose of the Study:

To review the common intraventricular tumors.
To highlight the diagnostic utility of demographics, clinical presentation, and imaging findings.
To provide a guide for narrowing differential diagnoses of intraventricular masses.

Main Methods:

Review of common intraventricular tumors constituting over 90% of cases.
Analysis of demographic, clinical, and imaging characteristics.
Focus on computed tomography (CT) and magnetic resonance imaging (MRI) roles.

Main Results:

Eight common tumor types account for the vast majority of intraventricular masses.
Demographic, clinical, and imaging data are crucial for differential diagnosis.
CT and MRI are essential for diagnosis and surgical planning.

Conclusions:

Intraventricular tumors require specific diagnostic considerations due to their unique location and diverse pathology.
A systematic approach integrating clinical, demographic, and imaging data aids in accurate diagnosis.
Understanding common intraventricular neoplasms improves patient management and surgical outcomes.