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.
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