Abstract
Falcotentorial meningiomas arise along the junction of the falx cerebri and the tentorium cerebelli. The authors present a woman in her 60s with an incidentally discovered falcotentorial meningioma, approximately 3 cm in diameter, resected with a torcular craniotomy and posterior interhemispheric approach. The galenic complex was dissected away from the tumor. In the final view, the bilateral internal cerebral veins and basal veins of Rosenthal were seen. A Simpson grade I resection was achieved. The patient experienced transient contralateral hemianopsia and was discharged home. At 1-year follow-up, her neurological examination findings were unremarkable, and there was no radiographic evidence of tumor.The video can be found here: https://stream.cadmore.media/r10.3171/2021.4.FOCVID2125.
Highlights
Falcotentorial meningiomas arise along the junction of the falx cerebri and the tentorium cerebelli
The head was positioned so that gravity retracted the right parietal and occipital regions
You can see that the falx has been completely transected, reaching the contralateral interhemispheric fissure, and you can see widening of the leaflets of the falx as it joins at the falcotentorial junction
Summary
Falcotentorial meningiomas arise along the junction of the falx cerebri and the tentorium cerebelli. This video will demonstrate the posterior interhemispheric occipital transtentorial approach for resection of falcotentorial meningioma. The straight sinus reconstitutes distal to the tumor and drains to the torcular region. The head was positioned so that gravity retracted the right parietal and occipital regions.
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