Which Neural Tract Plays a Major Role in Memory Impairment After Multiple Cerebral Infarcts? A Case Report.
10.5535/arm.2018.42.4.617
- Author:
Dae Kwon PARK
1
;
Ki Hyun BYUN
;
Dongseok YANG
Author Information
1. Department of Physical Medicine and Rehabilitation, Ulsan University Hospital, University of Ulsan College of Medicine, Ulsan, Korea. fnew1@hanmail.net
- Publication Type:Case Report
- Keywords:
Cerebral infarction;
Limbic system;
Memory deficit
- MeSH:
Brain Injuries;
Cerebral Infarction;
Humans;
Limbic System;
Male;
Memory Disorders;
Memory*;
Young Adult
- From:Annals of Rehabilitation Medicine
2018;42(4):617-620
- CountryRepublic of Korea
- Language:English
-
Abstract:
Injury to the thalamocortical tract (one in the Papez circuit) that leads to memory impairment following brain injury is very rare. In this study, we present a case of partial injury to the thalamocortical tract that causes memory impairment after concurrent thalamic and hippocampal infarct. A 20-year-old male complained of memory impairment 1 month after partial injury to the thalamocortical tract. Using a probabilistic diffusing tensor tractography, it was found that the right thalamocortical tract was thinner than the left thalamocortical tract. However, all other neural tracts including the fornix, cingulum, and mammillothalamic tract were intact on both hemispheres. Therefore, the memory impairment in this patient was considered as being due to thalamic infarct based on the observation that the fornix from hippocampal infarct was intact. This case suggests that the assessment of lesions in the neural tracts of the Papez circuit might be useful for understanding the mechanism of memory impairment following cerebral infarction.
