[Cryptococcal Encephalitis Complicating Anti-N-methyl-D-aspartate Receptor Encephalitis in an Immunosuppressed

Dongming Liu1, Hongwei Xu1, Fang Yi1

  • 1Department of Geriatric Neurology,Xiangya Hospital,Central South University,Changsha 410008,China.

Insights

This study reports the first confirmed case of a patient simultaneously diagnosed with cryptococcal encephalitis and anti-N-methyl-D-aspartate receptor encephalitis (NMDARE). This rare co-occurrence highlights potential shared mechanisms between infectious and autoimmune neurological diseases.

Area of Science:

  • Neurology
  • Infectious Diseases
  • Immunology

Background:

  • Cryptococcal encephalitis is a fatal CNS infection.
  • Anti-N-methyl-D-aspartate receptor encephalitis (NMDARE) is an autoimmune disorder with diverse neurological and psychiatric symptoms.
  • Both conditions can cause cognitive dysfunction and behavioral changes.

Observation:

  • A patient with nephrotic syndrome presented with concurrent cryptococcal encephalitis and NMDARE.
  • This case represents the first documented instance of these two distinct neurological conditions coexisting in a single patient.

Findings:

  • The coexistence of cryptococcal encephalitis and NMDARE was confirmed in a single patient.
  • The underlying pathogenic mechanisms may share similarities with NMDARE triggered by other infections.

Implications:

  • This finding expands the understanding of potential triggers and co-morbidities in autoimmune encephalitis.
  • It suggests that infectious processes might play a role in the pathogenesis of autoimmune neurological disorders.
  • Further research is warranted to explore the interplay between infections and autoimmunity in the central nervous system.

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