- To provide a comprehensive review of both primary and secondary neoplastic processes that involve the meninges. - To illustrate a wide spectrum of neoplastic lesions and review the role of imaging in their diagnosis and management.
- Meningeal lesions are commonly encountered in daily reporting,
with grade I meningiomas,
the most common tumour of the meninges,
often discovered incidentally. - Yet the differentials for neoplastic tumours of the meninges are wide,
and many are often overlooked. - Imaging plays a pivotal role in identifying and characterising theselesions. - Accurate imaging diagnosis has a significant impact on management,
as not alltumours require neurosurgical intervention.
Findings and procedure details
The key imaging features of malignant meningeal lesions are described,
across a wide selection of cases from a large tertiary referral centre. MENINGIOMA Background: Most common tumour of the meninges- originating from the meningocytes or arachnoid cap cells of the meninges WHO classification: Grade I- benign,
Grade II- atypical,
Grade III- anaplastic/malignant. Treatment is surgical excision Imaging: Extra-axial tumours Commonly parasagittal Fig. 1 ,
located at the sphenoid ridge Fig. 3 and...
Having an understanding of the characteristic imaging features of meningeal tumours allows the radiologist to make an accurate diagnosis,
allowing promptfurther investigation and management.
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