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Central nervous system complications of Mycoplasma pneumoniae
Abstract:
Three cases of central nervous system complications of Mycoplasma pneumoniae infections are reported. There were several atypical findings: the first patient presented with an acute disseminated encephalitis with normal cerebrospinal fluid and hypogammaglobulinaemia. The second patient presented with a left sixth nerve palsy followed six weeks later by choreoathetoid movements and an acute psychosis. The third patient presented with an acute encephalitis associated with acute renal failure secondary to rhabdomyolysis and was the only patient who did not completely recover; he was discharged akinetic and mute, but with normal renal function. The diagnosis of complications of Mycoplasma pneumoniae may be difficult. In two of the three cases a raised red blood cell volume secondary to a high titre of cold agglutinins rapidly led to the correct diagnosis.
Insights
Mycoplasma pneumoniae infections can cause rare central nervous system complications, including encephalitis and movement disorders. Diagnosing these neurological issues can be challenging, but cold agglutinins may aid in early detection.
Area of Science:
- Neurology
- Infectious Diseases
- Microbiology
Background:
- Mycoplasma pneumoniae is a common pathogen causing respiratory infections.
- Neurological complications associated with Mycoplasma pneumoniae are rare but can be severe.
- Early and accurate diagnosis is crucial for effective management of these complications.
Observation:
- Reported are three cases of central nervous system (CNS) complications in Mycoplasma pneumoniae infections.
- Observed atypical presentations included encephalitis with normal cerebrospinal fluid, sixth nerve palsy with subsequent choreoathetoid movements and psychosis, and encephalitis with acute renal failure.
- One patient experienced severe neurological deficits, remaining akinetic and mute post-infection.
Findings:
- The diagnosis of CNS complications from Mycoplasma pneumoniae can be difficult due to varied presentations.
- Atypical findings such as hypogammaglobulinaemia and rhabdomyolysis were noted.
- Elevated red blood cell volume due to high-titer cold agglutinins was a key diagnostic clue in two cases.
Implications:
- Highlights the diverse and sometimes subtle neurological manifestations of Mycoplasma pneumoniae infections.
- Emphasizes the importance of considering Mycoplasma pneumoniae in the differential diagnosis of unexplained neurological disorders.
- Suggests that monitoring for cold agglutinins may facilitate earlier diagnosis and intervention in suspected cases.