• Sung Ho Jang, Young Hyeon Kwon, and Sung Jun Lee.
• Department of Physical Medicine and Rehabilitation, College of Medicine, Yeungnam University 317-1, Daemyungdong, Namku, Daegu, Republic of Korea.
• Medicine (Baltimore). 2020 Aug 7; 99 (32): e21601.

RationaleWe report on a patient with mild traumatic brain injury (TBI) with contrecoup injury of the prefronto-thalamic tract (PTT), as demonstrated by diffusion tensor tractography (DTT).Patient ConcernsA 62-year-old female patient suffered a head trauma after falling backward. While working at a height of 85cm above the floor, she fell backward and struck the occipital area of her head on the ground. The patient experienced cognitive dysfunction and depressive mood after the head trauma.DiagnosesThe patient was diagnosed as mild TBI due to falling backward.InterventionsClinical evaluation of her brain was performed at 2 months after onset.OutcomesDTT at 2 months after onset revealed narrowings in the right ventrolateral and both orbitofrontal PTTs, whereas both the dorsolateral and left ventrolateral PTTs were not reconstructed.LessonsInjuries of the PTTs associated with a contrecoup brain injury were demonstrated in a patient with mild TBI.

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