COMPLETE CALLOSAL DISCONNECTION AFTER CLOSED-HEAD INJURY

We report a patient with complete callosal disconnection syndrome afte r severe closed head injury. MRI showed a complete destruction of the corpus callosum throughout its length. Although traumatic callosal les ions are a frequent finding in autopsy studies, as well as in some rec ent MRI studies, clinical signs of callosal disconnection are rarely o bserved after head injuries and a complete disconnection syndrome has not been reported yet. This case study and the review of other reporte d cases suggest that posttraumatic callosal disconnection is probably often overlooked. Our patient had also a severe memory disorder that m ight be partly related to the bilateral involvement of the fornix, as this structure is closely adjacent to the posterior corpus callosum, a nd was also shown by MRI to be very probably damaged.