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Related to decussation: decussation of pyramids
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2) Colour-coded functional anisotropic maps evaluate for the presence of a focal red dot anterior to the mesencephalon, adjacent to the interpeduncular fossa, which represents the decussation of these fibre tracts (Fig.
The pathways were drawn and the decussation was highlighted in different colours.
The fibers in the pyramidal decussation to the upper limbs are more superior and ventral and more medial than the lower limb fibers, which are located inferior and laterally at the cervicomedullary junction.