We described the microsurgical anatomy of the Iateral part of the foramen magnum and the transcondylar fossa approach ( TCFA ) . The TCFA proVides a wide and shallow operative field in the lateral part of the medulla oblongata at the level of the jugular foramen . Furthermore , wide dissection of the unilateral cerebello − medullary fissure is necessary to retract the cerebellum safely and manage the lesion in the wide operative field ,
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