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Updated: Jul 18, 2026

Discovering Middle Ear Anatomy by Transcanal Endoscopic Ear Surgery: A Dissection Manual
Published on: January 11, 2018
[Useful imaging of the ear].
C Ala Eddine1, M Williams, D Ayache
1Service d'Imagerie Médicale, Fondation Ophtalmologiste Rosthchild, 25, rue Manin, 75019 Paris, France. calaeddine@free.fr
Accurate ear anatomy knowledge is crucial for diagnosing ear conditions. This review details key external, middle, and inner ear landmarks using CT and MRI imaging for effective pathology diagnosis.
Area of Science:
- Radiology
- Otolaryngology
- Medical Imaging
Background:
- Effective diagnosis of ear pathology relies heavily on precise anatomical understanding.
- Familiarity with the intricate structures of the ear is essential for radiologists and clinicians.
Purpose of the Study:
- To summarize the primary anatomical landmarks of the human ear.
- To provide a guide for identifying key ear structures on medical imaging.
Main Methods:
- Review of anatomical definitions of the external ear, middle ear, and bony labyrinth.
- Description of these structures as visualized on routine computed tomography (CT) scans.
- Review of the anatomical definition of the membranous labyrinth and cochleovestibular nerve on magnetic resonance imaging (MRI).
Main Results:
- Detailed anatomical descriptions of the external, middle, and bony labyrinth of the ear are provided.
- The visualization and identification of the membranous labyrinth and cochleovestibular nerve using MRI are reviewed.
- Key landmarks for diagnostic interpretation on CT and MRI are highlighted.
Conclusions:
- Comprehensive anatomical knowledge of the ear is fundamental for accurate diagnosis in otologic pathology.
- This review serves as a valuable resource for interpreting CT and MRI scans of the ear.
- Understanding these anatomical definitions aids in the detection and characterization of ear diseases.
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