Lexical-semantic Deficit without Semantic Impairment in a Patient with Left Anterior Choroidal Artery Infarction: Neural Correlates Based on Diffusion-tensor Tractography
- Author:
Han Kyu NA
1
;
Yeeun SUN
;
Sangwon JOE
;
Chung Seok LEE
;
Seokhyun KIM
;
Yunjung CHOI
;
Haram JOO
;
Deog Young KIM
;
Hyo Suk NAM
Author Information
- Publication Type:Case Report
- From:Journal of the Korean Neurological Association 2023;41(3):210-215
- CountryRepublic of Korea
- Language:Korean
- Abstract: A 35-year-old male presented with atypical aphasia following left anterior choroidal artery infarction associated with distal internal carotid artery dissection. He presented with 1) lexical-semantic deficit without semantic impairment, 2) frequent surface errors (both surface dyslexia and dysgraphia), and 3) intact non-word reading/repetition (preserved sub-lexical route), suggesting deficit in the phonological output lexicon. Diffusion-tensor tractography analysis revealed disruption in the inferior fronto-occipital fasciculus and inferior longitudinal fasciculus, which might serve as potential subcortical neural correlates for phonological output lexicon.
