Mycoplasma pneumoniae associated opsoclonus-myoclonus syndrome in three cases

Benedikt Maria Huber1, Susi Strozzi, Maja Steinlin

  • 1Department of Pediatrics, University Hospital, Inselspital, Bern, Switzerland.

Insights

Opsoclonus-myoclonus syndrome (OMS) is a rare neurological disorder. This study links Mycoplasma pneumoniae infection to OMS in adolescents, suggesting it should be recognized as a potential cause.

Area of Science:

  • Neurology
  • Infectious Diseases
  • Immunology

Background:

  • Opsoclonus-myoclonus syndrome (OMS) is a rare movement disorder with unclear pathogenesis, often linked to paraneoplastic or parainfectious immune responses.
  • Mycoplasma pneumoniae is a known pathogen implicated in various immune-mediated neurological conditions.
  • The specific association between Mycoplasma pneumoniae and opsoclonus-myoclonus-ataxia syndrome remains poorly established.

Observation:

  • This study presents three adolescent cases of opsoclonus-myoclonus-ataxia syndrome.
  • All three cases occurred following an infection with Mycoplasma pneumoniae.
  • The patients experienced a monophasic disease course with full recovery.

Findings:

  • The findings establish a link between Mycoplasma pneumoniae infection and opsoclonus-myoclonus-ataxia syndrome in adolescents.
  • The observed favorable prognosis and full recovery align with parainfectious cases in young adults.
  • This association suggests that Mycoplasma pneumoniae should be considered within the spectrum of neurological complications.

Implications:

  • The established association necessitates considering Mycoplasma pneumoniae as a potential trigger for OMS.
  • The favorable prognosis in these cases may influence therapeutic strategies for OMS.
  • It remains crucial to rule out neuroblastoma in all patients diagnosed with OMS, regardless of potential infectious triggers.

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