Combined staged telo-velar and trans-choroidaI approach to a tumor of the sylvian aqueduct /

The video describes the staged resection of a midbrain ganglioglioma growing into the sylvian aqueduct, bulging downward into the fourth ventricle and upward into the third ventricle. The lesion had been diagnosed and treated four years earlier in another institution, but the tumor grew over the tim...

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