[Limited value of colloidal tests in CSF in the diagnosis of multiple sclerosis].

In 136 clinically definite MS cases the comparison was performed of intrathecal IgG production and detection of oligoclonal bands, evaluated by immunological methods with results of colloidal tests. The obtained results show, that the left side precipitation in colloidal tests indicates the presence of intrathecal IgG production, what was a definite value in the diagnosis of MS. However, the value of colloidal tests is very much limited by several times lower sensitivity of colloidal tests in detection of intrathecal IgG production in comparisons with the evaluation of intrathecal production and detection of oligoclonal bands by the immunological methods.