• Sung Ho Jang and Hyeok Gyu Kwon.
• Department of Physical Medicine and Rehabilitation, College of Medicine, Yeungnam University, Daegu Department of Physical Therapy, College of Health Sciences, Catholic University of Pusan, Republic of Korea.
• Medicine (Baltimore). 2017 Oct 1; 96 (43): e8253.

RationaleWe report on a patient with mild traumatic brain injury (TBI) by follow-up diffusion tensor tractography (DTT), and observed for approximately nine monthsby serial diffusion tensor tractography (DTT).Patient ConcernsA 66-year-old male patient was injured in a car crash. Approximately four weeks after the crash, he developed a tremor in the right hand and leg. His symptoms worsened over time.DiagnosesApproximately six months after the crash, he developed a mild tremor in the left hand. Nine months after the crash, he manifested severe tremor in his right hand, mild resting and intentional tremor in his left hand and both legs, and mild trunkal ataxia.InterventionsN/A.OutcomesOn 3-week DTT, well reconstructed DRTTs were observed in both hemispheres, except for the thinned lower portion of the right DRTT. On 9-month DTT, the right lower DRTT had thinned compared with the 3-week DTT and showed a disruption at the upper portion. The left DRTT showed thinning in the lower portion and tearing in the upper portion compared with 3-week DTT.LessonsAggravation of an injured DRTT was demonstrated in a patient with mild TBI, using serial DTT examination.

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