Ipsilateral motor symptoms caused by a right pterional meningioma.

The case is reported of a patient bearing a pterional meningioma on the right (non-dominant) side manifesting with ipsilateral motor symptoms, completely recovered after tumor removal. The occurrence of ipsilateral sensory and/or motor symptoms, probably due to direct or indirect involvement of the sensory/motor secondary areas of the insula of Reil, may be misleading in diagnosis because of apparent incongruity between clinical presentation and radiological findings. Only seven cases of such a condition, all localized on the left (dominant) side, have been previously reported.