J Korean Neurol Assoc.  2000 Sep;18(5):650-653.

Two Cases of Callosal Disconnection Syndrome: Impaired Body Cognition of Nondominant Limbs

Affiliations
  • 1Department of Neurology, School of Medicine, Catholic University of Daegu.

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.

Keyword

Callosal disconnection syndrome; Alien hand sign; Body schema; Body part identification

MeSH Terms

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
Full Text Links
  • JKNA
Actions
Cited
CITED
export Copy
Close
Share
  • Twitter
  • Facebook
Similar articles
Copyright © 2024 by Korean Association of Medical Journal Editors. All rights reserved.     E-mail: koreamed@kamje.or.kr