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Are right-hemisphere lesions really larger? Lesion size and laterality in meningioma patients
Abstract:
Patients with pathologically confirmed diagnoses of meningioma were examined to investigate the hypothesis that left-hemisphere lesions are smaller or declared earlier than right-hemisphere lesions. 77 patients were examined with regard to age at presentation and nature of symptoms. In addition CAT scan films of 47 patients were obtained for measurement of lesion size. There were no differences between right and left lesion groups with regard to size of lesion or age at presentation. Subgroups of patients with lesions in frontal association areas also did not differ. Some relationships were discovered between lesion location and nature of symptoms.
Insights
This study found no significant differences in size or age of presentation between left and right hemisphere meningiomas. However, lesion location was related to symptom presentation in patients with brain tumors.
Area of Science:
- Neurology
- Neurosurgery
- Oncology
Background:
- Meningiomas are tumors that arise from the meninges.
- Previous hypotheses suggested potential differences in presentation based on hemisphere laterality.
Purpose of the Study:
- To investigate if left-hemisphere meningiomas present differently than right-hemisphere meningiomas.
- To compare lesion size and age at presentation between hemispheres.
Main Methods:
- Retrospective analysis of 77 patients with pathologically confirmed meningioma.
- Assessment of age at presentation and symptom nature.
- Measurement of lesion size from CAT scan films in 47 patients.
Main Results:
- No significant differences were found in lesion size or age at presentation between left and right hemisphere meningiomas.
- Subgroup analysis of frontal lobe lesions also showed no differences.
- A relationship was identified between lesion location and the nature of symptoms.
Conclusions:
- Hemispheric location does not appear to influence meningioma size or age at diagnosis.
- Lesion location is a relevant factor in determining symptom presentation for meningioma patients.