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Related Experiment Video

Updated: Jul 12, 2025

In Vivo Morphometric Analysis of Human Cranial Nerves Using Magnetic Resonance Imaging in Meni&#232;re's Disease Ears and Normal Hearing Ears
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Extra-axial cranial nerve enhancement: a pattern-based approach.

Giulia Moltoni1,2, Andrea Romano3, Antonella Blandino3

  • 1NESMOS, Department of Neuroradiology, S.Andrea Hospital, University Sapienza, Via di Grottarossa, 00135, Rome, Italy. giulia.moltoni@uniroma1.it.

La Radiologia Medica
|October 26, 2023
PubMed
Summary

This study introduces a practical pattern-based approach for interpreting cranial nerve enhancement on MRI. It helps radiologists diagnose conditions by categorizing findings into four distinct patterns, simplifying complex cases.

Keywords:
Cranial nerve enhancementInfective diseasesInflammatory diseasesMRITumoral spread

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Area of Science:

  • Radiology
  • Neuroimaging
  • Medical Diagnostics

Background:

  • Cranial nerve enhancement on MRI is a frequent yet complex diagnostic challenge.
  • Existing literature often focuses on pathologies rather than a radiologist-centric, finding-first approach.
  • A systematic method is needed to navigate differential diagnoses from observed MRI patterns.

Purpose of the Study:

  • To develop and present a novel, practical pattern-based approach for diagnosing cranial nerve enhancement.
  • To guide radiologists from specific MRI findings to accurate diagnoses.
  • To offer a reverse approach starting with radiological evidence.

Main Methods:

  • Literature review to identify key patterns of cranial nerve enhancement.
  • Categorization of pathologies into four distinct patterns: unilateral linear, bilateral linear, unilateral thickened, and bilateral thickened.
  • Inclusion of high-quality MRI images and illustrative panels for each pattern.

Main Results:

  • Identification and definition of four primary patterns of cranial nerve enhancement.
  • Description of the pathogenic origins and radiological features for each pattern.
  • Provision of a recommended MRI protocol for evaluating cranial nerve enhancement.

Conclusions:

  • The proposed pattern-based approach simplifies the diagnosis of cranial nerve enhancement.
  • This method provides an immediately applicable tool for clinical practice.
  • It effectively translates challenging MRI findings into specific pathological patterns.