Two Cases of Callosal Disconnection Syndrome: Impaired Body Cognition of Nondominant Limbs.
- Author:
Tae Il KIM
1
;
Sung Je KIM
;
Jun Seok BAE
;
Sang Il SEO
;
Ji Eun KIM
;
Dong Kuck LEE
Author Information
1. Department of Neurology, School of Medicine, Catholic University of Daegu.
- Publication Type:Case Report
- Keywords:
Callosal disconnection syndrome;
Alien hand sign;
Body schema;
Body part identification
- MeSH:
Aged;
Agraphia;
Anomia;
Anterior Cerebral Artery;
Apraxia, Ideomotor;
Apraxias;
Body Image;
Brain;
Cognition*;
Corpus Callosum;
Diabetes Mellitus;
Emigrants and Immigrants;
Extremities*;
Female;
Frontal Lobe;
Hand;
Hand Strength;
Human Body;
Humans;
Hypertension;
Magnetic Resonance Imaging
- From:Journal of the Korean Neurological Association
2000;18(5):650-653
- CountryRepublic of Korea
- Language:Korean
-
Abstract:
Callosal disconnection results in the functional independence of each hemisphere and usually produces characteristic signs including alien hand, left-sided apraxia, left agraphia and left tactile anomia. Our two patients; a 75-year-old right-handed woman with hypertension and a 71-year-old right-handed woman with diabetes mellitus, showed impairments in the identification of body parts with their left hands in addition to characteristic symptoms such as left ideomotor apraxia, agraphia, tactile anomia, and right alien hand signs with groping and grasping. Brain MRIs of these patients upon admission demonstrated infarcts in the medial portion of the left frontal lobes and in the corpus callosum supplied by the left anterior cerebral artery. The impairment of body parts cognition in our patients can be attributed to the failure of the patient's left hand to communicate with the body schema stored in the left hemisphere.
