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Debilitating progressive encephalitis in a patient with BTK deficiency
Iraj Mohammadzadeh1, Mehdi Yeganeh, Mojdeh Khaledi
1Babol University of Medical Sciences, Non-Communicable Pediatric Diseases Research Center, Babol, Iran.
X-linked agammaglobulinemia (XLA), a BTK deficiency, can lead to severe neurological issues like encephalitis. This case highlights the increased risk of encephalitis in XLA patients, emphasizing the need for vigilance.
Area of Science:
- Immunology
- Neurology
- Genetics
Background:
- X-linked agammaglobulinemia (XLA) is a primary antibody deficiency caused by Bruton's tyrosine kinase (BTK) deficiency.
- It is characterized by reduced B cells, agammaglobulinemia, and heightened infection susceptibility.
Observation:
- A patient with confirmed BTK mutation and XLA presented with neurological deficits.
- Comprehensive workup failed to identify an infectious agent.
- Brain MRI showed moderate brain atrophy.
Findings:
- The patient was diagnosed with progressive encephalitis.
- XLA patients exhibit a higher incidence of encephalitis compared to other primary antibody deficiencies.
Implications:
- Encephalitis poses a significant concern for individuals with XLA due to its severity.
- This case underscores the importance of considering neurological complications in XLA patients.
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