Akinetic mutism following prefrontal injury by an electrical grinder a case report: A diffusion tensor tractography study

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A 72-year-old male had suffered from head trauma resulting from injury to his frontal area by an electrical grinder while working at his home.

Patient concerns:

He lost consciousness for approximately 10 minutes and experienced continuous post-traumatic amnesia.


He was diagnosed as traumatic intracerebral hemorrhage in both frontal lobes, intraventricular hemorrhage, and subarachnoid hemorrhage, and underwent decompressive craniectomy and hematoma removal.


The patient's Glasgow Coma Scale score was 5. At 2 months after onset, when starting rehabilitation, he showed no spontaneous movement or speech; he remained in a lying position all day with no spontaneous activity.


On 2-month diffusion tensor tractography, decreased neural connectivity of the caudate nucleus to the medial prefrontal cortex (PFC, Broadmann area [BA]: 10 and 12) and orbitofrontal cortex (BA 11 and 13) was observed in both hemispheres.


Akinetic mutism following prefrontal injury.

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