Extraparenchymal Lesions in Adults
Marta Drake-Pérez1, James G Smirniotopoulos2
1Department of Radiology, Marqués de Valdecilla University Hospital/IDIVAL, Avda. Valdecilla n° 25, Santander 39008, Cantabria, Spain.
Neuroimaging Clinics of North America
|October 8, 2016
Summary
This review covers common and rare extra-axial central nervous system tumors, detailing imaging approaches. It highlights diagnostic pearls and pitfalls for a practical understanding of these brain tumors.
Area of Science:
- Neurology
- Radiology
- Oncology
Background:
- Extra-axial tumors are a significant category of central nervous system neoplasms.
- Meningioma is the most prevalent type, but a spectrum of rarer conditions also occur.
Purpose of the Study:
- To provide a comprehensive overview of frequent extra-axial central nervous system tumors.
- To focus on practical imaging techniques, including diagnostic pearls and potential pitfalls.
Main Methods:
- Review of common and uncommon extra-axial central nervous system tumors.
- Emphasis on characteristic imaging findings.
- Discussion of diagnostic challenges and solutions.
Main Results:
- Detailed description of meningioma imaging features.
- Presentation of imaging characteristics for less common entities like Rosai-Dorfman disease.
- Identification of key imaging pearls and pitfalls for accurate diagnosis.
Conclusions:
- Accurate interpretation of imaging is crucial for diagnosing extra-axial tumors.
- Understanding imaging nuances aids in differentiating common from rare lesions.
- A practical imaging approach improves diagnostic confidence and patient management.


