Cerebellar involvement in multifocal eosinophilic granuloma: demonstration by computerized tomographic scanning.

Central nervous system involvement outside the hypothalamus or pituitary in multifocal eosinophilic granuloma (MEG) is unusual. Eleven patients with MEG have been examined with cranial computerized axial tomograms (CT). Four patients with moderate to severe cerebellar dysfunction, 3 of whom had no detectable lesions by other neuroradiological techniques, were found to have cerebellar abnormalities. All of the remaining 7 patients with normal neurological examinations had normal CT scans. Computerized axial tomography is a useful technique in the evaluation of patients with MEG and neurological impairment.