Anatomical variants of brain structure: confused spatial relationship of the fornix to the corpus callosum and anterior commissure.
How the developing nerve fibers are guided to and able to find their target is currently a matter of research. As examples of the false guidance of axons, anatomical variants of the spatial relationship of the columna fornicis to the corpus callosum and the anterior commissure are demonstrated. In a 60 year-old female patient, some of the fibers of the genu corporis callosi were found to be entrapped by a fornix fiber bundle. The brain of a 20 year-old man showed that the unilateral anterior commissure ran posterior to the columna fornicis. These changes were clinically insignificant.
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Institute of Neuropathology, Medizinische Hochschule Hannover, Germany.
D000328:Adult; D001921:Brain / Q000033:anatomy & histology* / Q000473:pathology; D003337:Corpus Callosum / Q000033:anatomy & histology*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009412:Nerve Fibers / Q000648:ultrastructure*