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Primary central nervous system tumors in patients with multiple sclerosis
Masih Sabouri1, Masoud Etemadifar1, Fatemeh Dehghani Firoozabadi1
1Department of Neurosurgery, Alzahra University Hospital, Isfahan, Iran.
BMC Neurology
|April 9, 2025
Summary
The prevalence of central nervous system (CNS) tumors in multiple sclerosis (MS) patients is 1.58%, with pituitary adenomas and meningiomas being most common. Close monitoring for new symptoms is crucial due to potential overlap.
Area of Science:
- Neurology
- Oncology
Background:
- Multiple sclerosis (MS) shares diagnostic features with central nervous system (CNS) tumors.
- MS patients may have a higher risk of CNS malignancies despite a lower overall cancer risk.
Purpose of the Study:
- To investigate the prevalence of CNS tumors in patients diagnosed with MS.
- To identify common CNS tumor types in an MS population.
Main Methods:
- Cross-sectional observational study.
- Utilized data from the Isfahan MS clinic registry (2020-2023).
- Included MS patients diagnosed with primary CNS tumors post-MS diagnosis.
Main Results:
- Prevalence of CNS tumors in MS patients was 1.58% (36 of 2,280).
- Most common tumors: pituitary adenomas (41.7%) and meningiomas (30.6%).
- Mean age at tumor diagnosis was 45 years; mean age at MS diagnosis was 31.5 years.
Conclusions:
- The study found a 1.58% prevalence of primary CNS tumors in the studied MS population.
- Meningiomas and pituitary adenomas were the most frequent CNS tumors in MS patients.
- Emphasizes the need to assess new or atypical symptoms for potential CNS malignancies in MS patients.
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