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Arachnoid Membranes: Crawling Back into Radiologic Consciousness.
S Lu1, A Brusic2, F Gaillard2,3
1From the Department of Radiology (S.L., A.B., F.G.), Royal Melbourne Hospital, Parkville, Victoria, Australia lushisheng@gmail.com.
AJNR. American Journal of Neuroradiology
|October 29, 2021
Summary
Arachnoid membranes, connective tissue in the subarachnoid space, are crucial for understanding communicating hydrocephalus. This review details their anatomy and clinical significance for neuroradiologists.
Area of Science:
- Neuroanatomy
- Neuroradiology
- Cerebrospinal Fluid Dynamics
Background:
- Arachnoid membranes are connective tissue projections within the subarachnoid space.
- These structures connect the arachnoid mater to the pia mater.
- Their significance in communicating hydrocephalus is often underappreciated.
Purpose of the Study:
- To provide neuroradiologists with a comprehensive overview of arachnoid membranes.
- To cover the history, embryology, histology, anatomy, and normal imaging of these membranes.
- To illustrate the clinical importance of arachnoid membranes in conditions like hydrocephalus.
Main Methods:
- Literature review and synthesis of existing research.
- Analysis of anatomical and histological data.
- Compilation of imaging findings related to arachnoid membranes.
Main Results:
- Detailed description of arachnoid membrane anatomy and histology.
- Explanation of their role in the pathogenesis of communicating hydrocephalus.
- Presentation of normal imaging appearances and pathological examples.
Conclusions:
- Arachnoid membranes are vital structures in the subarachnoid space.
- Increased recognition of these membranes can improve hydrocephalus diagnosis and management.
- Further study is warranted to fully elucidate their role in neurological disorders.
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