Essential mixed cryoglobulinaemia with false-positive serological tests for syphilis.

Essential mixed cryoglobulinaemia with false-positive serological tests for syphilis.

Analysis of serum from a patient with cutaneous leukocytoclastic vasculitis showed a mixed cryoglobulin with a monoclonal IgM kappa-antiglobulin component (6.5 mg/ml), strong rheumatoid factor activity (latex titre 1/5000), and positive serological tests for syphilis (fluorescent treponemal antibody-absorbed and Treponema pallidum haemagglutination assay). After removal of antiglobulin activity...

Biological false positive serological tests for syphilis among drug addicts.

The biological false positive reaction to serological tests for syphilis.

Acute and chronic biological false positive reactions to serological tests for syphilis are discussed. Three cases are presented, one showing an acute and one a chronic reaction, and one in which it was not possible to determine if the reaction was acute or chronic. Once a biological false positive reaction is found, serum from the patient should be tested at intervals for at least six months t...

False positive serological reactions for syphilis in leprosy.

It was proposed at the serological laboratory for the Ceylon Army Command to study the incidence of false positive serological reactions for syphilis given by sera from cases of leprosy. This inquiry, however, had to be closed prematurely because of early demobilization of the unit. As it has not been possible for the writer to record further observations, the available data is tabulated below....

False Positive Serological Reactions for Syphilis in Smallpox Vaccinations

False positive Wassermann reaction (W-R.) and Kahn test after yaccination have been reported by a number of writers. Rein and Elsberg (1945) reviewed the literature on the subject. It was proposed to investigate the incidence of post-vaccinial seropositive reactions amongst men in Ceylon Army Command. Exigencies of service, however, did not permit completion of this survey. The results of the d...