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(PATH "gifs/Syllabus Chapters/Cerebral_Cortex/pathacallosal.gif"))

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(FRAME-INFO (STRING "Agenesis of Corpus Callosum. \(Photo compliments of Drs. E.C. Alvord, Jr., and A.E. Spence, Dept. of Pathology, University of Washington\). This shows an imperfect development \(agenesis\) of the corpus callosum. There may be a partial or complete separation of the two hemispheres \(complete in this specimen\) except in the region of the anterior commissure and lamina terminalis.   Note the prominent septal nuclei. This congenital anomaly may be associated with seizures, mental retardation, or hydrocephalus. The gyral pattern on the medial surface is also abnormal \(note radiating sulcal pattern\), although the occipital lobe appears \"normal\" with a horizontally-placed calcarine sulcus."))
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