BRAIN SPECT IN A CASE OF CORTICAL BLINDNESS

Background Published reports on patients with cortical blindness descr ibe bilateral brain hemispheric lesions visualized in radiological and functional imaging studies. Case Description We present a case with a unilateral lesion on radiological studies and bilateral abnormalities on single-photon emission-computed tomographic (SPECT) scanning. Conc lusions SPECT images correlated much more closely than radiological st udies with the patient's clinical status. We suggest that SPECT scanni ng can be a useful indicator of focal brain dysfunction in brain injur y in spite of normal radiological studies. We also hypothesize that ou r patient's clinical and functional imaging findings could be attribut ed in part to the process of diaschisis.