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Association of meningiomas with dural "tails"; surgical significance
J J Larson1, J M Tew, J G Wiot
1University of Cincinnati, College of Medicine, Department of Neurosurgery, Ohio.
Abstract:
Intracranial meningiomas are characteristically benign tumours with a tendency to recur following surgical resection. Our group is investigating the pathogenesis of meningioma recurrence. In our initial studies we identified two cases of dural "tails" associated with intracranial meningiomas. Gadolinium-enhanced magnetic resonance images were utilized to identify the dural "tails" preoperatively. These images aided us in performing a more complete surgical resection of the meningiomas. Histopathological confirmation of meningotheliomatous cell infiltration into the dural "tails" demonstrates their surgical significance.
Insights
Intracranial meningiomas can recur after surgery. Identifying dural "tails" using MRI preoperatively helps surgeons achieve more complete tumor removal, potentially reducing recurrence.
Area of Science:
- Neurosurgery
- Oncology
- Radiology
Background:
- Intracranial meningiomas are common primary brain tumors, typically benign but prone to recurrence after surgical resection.
- Understanding the factors contributing to meningioma recurrence is crucial for improving patient outcomes.
- The presence and significance of dural "tails" in relation to meningioma recurrence require further investigation.
Observation:
- Two cases of intracranial meningiomas with associated dural "tails" were identified.
- Gadolinium-enhanced magnetic resonance imaging (MRI) was used for preoperative identification of these dural "tails".
Findings:
- Preoperative identification of dural "tails" via MRI facilitated a more complete surgical resection of the meningiomas.
- Histopathological analysis confirmed meningotheliomatous cell infiltration within the dural "tails".
Implications:
- Dural "tails" represent an extension of the meningioma into the dura mater.
- Surgical resection of dural "tails" may be critical for achieving gross total resection and potentially minimizing meningioma recurrence.
- Enhanced MRI protocols can improve surgical planning and completeness of resection for intracranial meningiomas.