The inferior longitudinal fasciculus is a bundle of myelinated axons which connects the occipital lobe with the temporal lobe in each hemisphere of the cerebrum. It runs parallel to the lateral walls of the inferior and posterior cornua of the lateral ventricle. Some anatomists call this bundle of fibers "occipitotemporal projection system." The function of the inferior longitudinal fasciculus is highly involved in visual memory as a 47-year-old woman with visual memory disturbance, demonstrated by the Wechsler Memory Scale-Revised, suffered from brain tumor in the right temporal lobe that disrupted the fibers bundle of the ILF. Disruption of white matter integrity in the inferior longitudinal fasciculus in teenagers with schizophrenia was also revealed by fiber tractography.