• Sang Seok Yeo, Min Cheol Chang, Seong Ho Kim, Son Su Min SM, and Sung Ho Jang.
• Department of Physical Medicine and Rehabilitation, College of Medicine, Yeungnam University, Taegu, Korea.
• NeuroRehabilitation. 2012 Jan 1; 31 (2): 143-6.

AbstractWe report on a patient with traumatic brain injury who showed neural connection between injured cingulum and pedunculopontine nucleus on diffusion tensor tractography (DTT). A 74-year-old male who had suffered a traffic accident underwent conservative management for subarachnoid haemorrhage. Brain MRI which was performed 6 months after onset showed no specific lesions. On 6-month DTTs for cingulum of the patient, we observed discontinuations of both cingulums above the genu of corpus callosum. However, the left cingulum was connected to the left PPN via a neural tract that passed through the anterior corona radiata and thalamus. The neural connection between the injured cingulum and PPN seems to be a compensatory phenomenon for the destruction of cholinergic pathways from basal forebrain. We believe that this result might suggest one of recovery mechanisms of injured cingulum following brain injury.

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