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High Prevalence of Bihemispheric Structural and Functional Defects in Sturge-Weber Syndrome

Departments of Pediatrics, Neurology, and Neuroscience

Jennifer A. Neufeld, BS

Departments of Pediatrics, Neurology, and Neuroscience

Louis C. Rosainz, BS

Departments of Pediatrics, Neurology, and Neuroscience

Kfir Ben-David, BS

Departments of Pediatrics, Neurology, and Neuroscience

Walter E. Drane, MD

Department of Radiology

Ronald G. Quisling, MD

Department of Radiology

Latif M. Hamed, MD

Department of Ophthalmology, University of Florida College of Medicine, Gainesville, FL

Abnormal cerebral venous drainage is associated with hypoxia and glucose deprivation, which can account for progressive neurologic deterioration in Sturge-Weber syndrome. Although developmental delay is common in Sturge-Weber syndrome, bihemispheric calcification is uncommon. Computed tomography (CT) and magnetic resonance imaging (MRI) were used to study the neuroanatomy, while single photon emission computed tomography (SPECT) was used concurrently to evaluate perfusion and glucose metabolism using ^99mTc hexamethylpropyleneamine oxime (HMPAO) and [¹⁸F] fluorodeoxyglucose (FDG), respectively. Ten patients (10 to 22 years of age) with previously diagnosed Sturge-Weber syndrome, port-wine nevi, and clinical evidence of seizures or stroke-like episodes were studied. Five children with onset of seizures in the first year of life had overall clinical severity comparable to that of children with later-onset seizures. Calcification was present in both hemispheres in one patient; six additional patients had other radiologic evidence of bihemispheric disease; SPECT studies detected bihemispheric disease in four cases. Our study is the first to concurrently evaluate structure, perfusion, and glucose metabolism in Sturge-Weber syndrome and to show a mismatch between functional and structural brain imaging in both cerebral hemispheres. Widespread abnormalities of cerebral perfusion and glucose metabolism might explain the high prevalence of developmental delay associated with Sturge-Weber syndrome. Longitudinal studies are needed to define better the natural history of neurologic deterioration and radiologic progression that relates to central nervous system circulatory dysfunction in Sturge-Weber syndrome. (J Child Neurol 1998;13:595-605).

Journal of Child Neurology, Vol. 13, No. 12, 595-605 (1998)
DOI: 10.1177/088307389801301203


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