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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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Related Experiment Video

Updated: May 21, 2026

Role of Diffusion MRI Tractography in Endoscopic Endonasal Skull Base Surgery

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Published on: July 5, 2021

[Intra-axial brain tumors].

P Papanagiotou¹

¹Klinik für Diagnostische und Interventionelle Neuroradiologie, Universitätsklinikum des Saarlandes, Kirrberger Straße, Homburg/Saar, Deutschland. papanagiotou@me.com

|June 16, 2012

Summary

Neuroradiology, using computed tomography (CT) and magnetic resonance imaging (MRI), is crucial for diagnosing brain tumors. This review details the CT and MRI imaging characteristics of common primary intra-axial brain tumors.

Area of Science:

Neuroradiology
Neuroimaging
Oncology

Context:

Brain tumor diagnosis relies heavily on advanced imaging techniques.
Computed tomography (CT) and magnetic resonance imaging (MRI) provide detailed anatomical information of the brain.
Characterizing intracranial lesions is essential for accurate diagnosis.

Purpose:

To review the imaging features of common primary intra-axial brain tumors using CT and MRI.
To highlight the diagnostic capabilities of neuroradiology in neuro-oncology.
To provide a comprehensive overview of neuroradiological findings in brain tumors.

Summary:

Neuroradiology utilizes CT and MRI for precise anatomical depiction of intracerebral lesions.
Native and contrast-enhanced imaging studies aid in lesion characterization.

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The review focuses on the imaging aspects of the most frequent primary intra-axial brain tumors.

Impact:

Enhances understanding of neuroradiological diagnostic criteria for brain tumors.
Supports clinicians in differentiating various intra-axial brain lesions.
Improves diagnostic accuracy and patient management in neuro-oncology.