FIELD: medicine, neurosurgery.
SUBSTANCE: it is necessary to perform trepanation of posterior cranial fossa followed by visualization of rhomboid fossa bottom and dorsal surface of medullar oblongata. One should dissect pia mater along posterior median groove being below nuclei gracilis and cuneatus and put aside cerebral tissue laterally, form wound pathway being ventrally and rostrally against the tumor. The innovation enables to decrease traumatism of the technique applied.
EFFECT: more simplified access.
2 dwg, 1 ex
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