ACQUIRED LESIONS OF THE CORPUS-CALLOSUM

Acquired lesions of the corpus callosum may be related to tumoral, vas cular, traumatic or degenerative disorders and, one must not forget. f an result from surgical access. Currently, the quality of neuroimaging enables a validation or precision of anatomoclinical, neuropsychologi cal and neurophysiological correlations established from experimental and/or autopsy data, However the ''specific'' signs of acquired lesion s of the corpus callosum are often quite complex and may be readily ov erlooked or masked within a heterogeneous clinical presentation due to Inure or less important associated lesions of neighboring structures. Therapeutic management (tumors, arteriovenous malformations. cavernom as) depend on the nature and the extent of the lesion more than the fu nctional nature of this interhemispheric commissure with an exceptiona l functional plasticity, particularly when the lesion is limited.