Is the cortical blindness due to diaschisis?
| Autor: | Değirmenci S, Varoğlu E, Deniz O, Yilmaz M, Uslu H |
|---|---|
| Rok vydání: | 1997 |
| Předmět: |
Male
medicine.medical_specialty Pathology Eye disease Central nervous system disease Vision disorder Blindness Cortical medicine Humans Radiology Nuclear Medicine and imaging Diaschisis Cerebral Hemorrhage Tomography Emission-Computed Single-Photon Cortical blindness business.industry Brain General Medicine Middle Aged medicine.disease Functional imaging Radiology Occipital Lobe medicine.symptom Occipital lobe business Perfusion |
| Zdroj: | Clinical nuclear medicine. 22(12) |
| ISSN: | 0363-9762 |
| Popis: | Cortical blindness is defined as a loss of vision that is caused by bilateral occipital lobe lesions. Many reports of patients with cortical blindness describe bilateral occipital lesions visualized on morphologic and functional imaging studies. The authors present the case of a patient who became cortically blind after a hemorrhagic lesion of the right occipital lobe. CT failed to reveal bilateral occipital involvement, but the brain SPECT showed decreased perfusion of both parleto-occipital areas. The brain SPECT findings correlated better with the clinical status. SPECT may be more useful than CT for detecting functional brain abnormalities, and the clinical and imaging findings of the present patient could be attributed to the transhemispheric diaschisis. |
| Databáze: | OpenAIRE |
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