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Hemiatrophy of cerebral cortex

Last edited: 4/22/2026

Overview

Hemiatrophy of the cerebral cortex, particularly hemidecortication, involves the underdevelopment or atrophy of one cerebral hemisphere, affecting cognitive, linguistic, and behavioral functions differentially based on the affected hemisphere. 1

Diagnosis

  • Clinical Presentation: Assess narrative discourse skills, particularly in adolescents, noting differences in narrative complexity and use of pronouns.
  • Neuroimaging: MRI or CT scans to visualize structural abnormalities in the cerebral cortex.
  • Language Assessments: Formal evaluations of language production and comprehension to identify hemisphere-specific deficits. 1
  • Management

  • Speech and Language Therapy: Tailored interventions focusing on narrative skills and pronoun usage for improved communication.
  • Cognitive Rehabilitation: Targeted exercises to enhance cognitive functions affected by hemispheric imbalance.
  • Educational Support: Specialized educational strategies to accommodate learning differences identified in affected individuals. 1
  • Special Populations

  • Pediatrics: Adolescents exhibit distinct narrative strategies; right hemidecorticates show more advanced narrative cohesion compared to left hemidecorticates. 1
  • Key Recommendations

  • Conduct comprehensive language assessments to identify specific deficits in narrative skills and pronoun usage in hemidecorticate adolescents. (Evidence: Moderate) 1
  • Implement individualized speech and language therapy focusing on narrative coherence and referential clarity. (Evidence: Expert opinion) 1
  • Provide tailored educational support recognizing the variability in cognitive and linguistic abilities between left and right hemidecorticates. (Evidence: Expert opinion) 1
  • References

    1 Lovett MW, Dennis M, Newman JE. Making reference: the cohesive use of pronouns in the narrative discourse of hemidecorticate adolescents. Brain and language 1986. link90046-5)

    Original source

    1. [1]

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