Sunday, March 13, 2016

False-positive AChR-ab tests

False-positive AChR-ab tests are rare, but reported in

autoimmune liver disease,
systemic lupus,
inflammatory neuropathies,
amyotrophic lateral sclerosis,
penicillamine-treated patients with rheumatoid arthritis,
patients with thymoma but without MG, and
first-degree relatives of patients with acquired autoimmune MG.

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