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Superior Longitudinal Fasciculus, Optic Radiations

Surgical Correlation


Superior longitudinal fasciculus and optic radiation.   Lateral perspective of the right cerebrum. The cerebral cortex has been removed completely to reveal the deep white matter tracts.  The superior longitudinal fasciculus is a major association tract located lateral to the corona radiata and superior to the external capsule and claustrum.  (The external capsule, not labeled here, is the massive white matter structure in center of the image).  The superior longitudinal fasciculus connects the frontal lobe with the ipsilateral parietal, temporal and occipital lobes. The optic radiations radiate from the lateral geniculate nucleus of the thalamus and course through the temporal and parietal lobes toward the primary visual cortex in the occipital lobe.  The uncinate fasciculus is a white matter bundle that connects the lateral orbitofrontal cortex with the anterior temporal lobe, including the amygdala and the cortex of the uncus.  (Image courtesy of PA Rubino)