Related Experiment Video

Updated: Aug 14, 2026

Modeling Brain Metastases Through Intracranial Injection and Magnetic Resonance Imaging
06:44

Modeling Brain Metastases Through Intracranial Injection and Magnetic Resonance Imaging

Published on: June 7, 2020

Malignant meningioma: computed tomography and magnetic resonance imaging characteristics

Keith Cauley1, Bipin Jagjivan, Ahmed Khan

  • 1Department of Diagnostic Radiology, University of Connecticut Health Center, Farmington, USA.

Connecticut Medicine
|December 31, 2005
PubMed

Insights

Malignant meningioma, a rare aggressive brain tumor, can be misdiagnosed as benign on initial biopsy. This case highlights key imaging features on CT and MR scans that suggest malignancy despite initial pathology findings.

Area of Science:

  • Neuro-oncology
  • Radiology
  • Pathology

Background:

  • Malignant meningioma is a rare subtype with aggressive behavior and high recurrence rates.
  • Histopathology typically determines tumor aggressiveness, with limited consensus on imaging features.
  • Initial biopsy may misclassify malignant meningioma as benign.

Purpose of the Study:

  • To describe a case of malignant meningioma initially diagnosed as benign.
  • To review computed tomography (CT) and magnetic resonance (MR) imaging features of this aggressive tumor.
  • To discuss imaging findings indicative of tumor aggressiveness.

Main Methods:

  • Case report review.
  • Analysis of computed tomography (CT) imaging.
  • Analysis of magnetic resonance (MR) imaging.

Main Results:

  • The case involved a malignant meningioma with an initial benign biopsy diagnosis.
  • Review of CT and MR imaging revealed aggressive features at presentation.
  • Discussion of imaging characteristics associated with aggressive tumor behavior.

Conclusions:

  • Imaging findings can suggest malignant meningioma even when initial pathology is benign.
  • CT and MR imaging play a crucial role in identifying aggressive features.
  • Radiological assessment is vital for accurate diagnosis and management planning.

Related Concept Videos

Magnetic Resonance Imaging01:24

Magnetic Resonance Imaging

Magnetic resonance imaging (MRI) is a noninvasive medical imaging technique based on a phenomenon of nuclear physics discovered in the 1930s, in which matter exposed to magnetic fields and radio waves was found to emit radio signals. In 1970, a physician and researcher named Raymond Damadian noticed that malignant (cancerous) tissue gave off different signals than normal body tissue. He applied for a patent for the first MRI scanning device in clinical use by the early 1980s. The early MRI...
Imaging Studies I: CT and MRI01:14

Imaging Studies I: CT and MRI

Introduction: MRI and CT scans are crucial advancements in medical imaging techniques, playing a vital role in diagnosing conditions related to the gastrointestinal (GI) system. Each scan serves distinct purposes, targets specific areas, and requires unique nursing duties.
Description of the Procedures
Computed Tomography (CT) scan:
Computed Tomography (CT) scans use X-ray technology to generate detailed images of bones, organs, and tissues. During the scan, the patient lies on a moving table...
Imaging Studies IV: Magnetic Resonance Imaging01:27

Imaging Studies IV: Magnetic Resonance Imaging

Introduction:Magnetic Resonance Imaging, or MRI, can include a specialized imaging technique of the urinary system known as Magnetic Resonance Urography (MRU). This radiation-free technique uses strong magnetic fields and radio waves to produce detailed images with the help of a computer. MRU is particularly effective for visualizing fluid-filled structures like the kidneys, ureters, and bladder.Applications of MRI in the Genitourinary SystemKidneys and Ureters: MRI detects tumors, cysts,...