Abstract
CSF-protein profiles of 25 children with acute cerebellar ataxia and of 39 children with intracranial midline tumours at diagnosis were examined by quantitative zone electrophoresis in agarose gel. The profiles were compared with those obtained from a control group of 86 cases, and those from 61 patients with aseptic meningitis and 40 children with bacterial meningitis. The data from the latter groups demonstrated the CSF-protein pattern of moderate or severe disturbance of the blood-CSF barrier (B-CSF-B), respectively. The children with acute cerebellar ataxia showed minor signs of a B-CSF-B impairment and no increase of γ-globulin. These findings point to a slight acute vascular lesion. CSF changes indicative of a moderate-to-severe dysfunction of the B-CSF-B occurred in the majority of the patients with cerebellar astrocytomas, pontine gliomas, tumours around the 3rd ventricle, and medulloblastomas. Therefore acute cerebellar ataxia can be differentiated from intracranial midline tumours in most cases by means of CSF-protein electrophoresis. A striking finding was that 12 out of 14 children with medulloblastomas revealed a marked increase of γ-globulin. Since in 5 of these cases oligoclonal γ-globulin could be detected, this finding means local immunoglobulin synthesis within the CNS. The marked increase of γ-globulin which almost exclusively occurred in association with medullo-blastomas allows their seperation from acute cerebellar ataxia and the other tumour groups. Quantitative agarose gel electrophoresis can be a complementary diagnostic test in children with acute ataxia and suspected of having a CNS infection, or in cases with a negative CT brain scan in which intracranial midline tumour is a likely possibility.
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Siemes, H., Siegert, M., Jaroffke, B. et al. The CSF-protein pattern in acute cerebellar ataxia of childhood and intracranial midline tumours. Eur J Pediatr 137, 49–57 (1981). https://doi.org/10.1007/BF00441170
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DOI: https://doi.org/10.1007/BF00441170