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Christina Applegate Says 2021 MS Diagnosis Was Overturned

Her medical team has begun fresh tests for autoimmune or infectious diseases that can mimic multiple sclerosis to find what is causing her continuing disability.

Overview

  • Applegate said her doctor told her she does not have multiple sclerosis after living with the diagnosis since August 2021 and publicly announcing the reversal in late October.
  • Despite the diagnostic change, she continues to experience severe symptoms, including limited mobility that requires a wheelchair for appointments and long delays getting out of bed.
  • Clinicians have returned to 'square one' and are running stepwise differential testing for conditions that can imitate MS, specifically rheumatoid arthritis, lupus and Lyme disease.
  • Applegate described intense emotional fallout from the reversal, saying she feels like a 'fraud' and is struggling to shed an identity built around the MS diagnosis, but she pledged to remain active in the MS community.
  • Medical experts note that MS has no single definitive test and can be misdiagnosed; doctors in her case are rechecking prior results, pausing some earlier treatments, and using updated testing to seek an alternative diagnosis.