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Hans Link, MD; Erling Norrby, MD; Jan-Edvin Olsson, MD

Arch Neurol. 1976;33(1):26-32.

Abstract
• Patients with chronic myelopathy of unknown origin were separated into two groups on the basis of presence or absence of oligoclonal immunoglobulin G (IgG) in cerebrospinal fluid (CSF).

Thirty-nine of 48 patients (81%) with oligoclonal IgG in CSF had measles virus antibodies in the CSF and 31 (65%) showed reduced serum/CSF measles virus antibody ratios, in comparison with the corresponding ratios of adenovirus, group-specific, penton hemagglutinationenhancement and poliovirus neutralization-enhancement antibodies. Of 25 patients with myelopathy, but without oligoclonal IgG in their CSF, three had detectable titers of measles CSF antibodies and one of these had a greatly reduced serum/CSF ratio.

The conditions of patients with chronic myelopathy of unknown origin and oligoclonal IgG in CSF may be diagnosed as probable multiple sclerosis (MS), in contrast to patients with this disease who lack oligoclonal IgG in CSF. However, the clinical features of the disease in these two groups do not differ substantially.

Author Affiliations
From the Department of Neurology, University Hospital, Linkoping, Sweden (Dr Link), the Department of Virology, Karolinska Institutet, School of Medicine, Stockholm (Dr Norrby), and the Department of Neurology, University Hospital, Lund, Sweden (Dr Olsson).

Footnotes
Accepted for publication Dec 26, 1974.

Reprint requests to Department of Virology, Karolinska Institutet, SBL, 105 21 Stockholm 1 (Dr Norrby).

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