A complex case of young child with ADHD, developmental delay who developed seronegative autoimmune encephalitis

M Saliba1, A Wilton2, K Hagen1

  • 1Dept. of Psychiatry and Psychology, Mayo Clinic, Rochester, MN, USA.

PubMed

Insights

Autoimmune encephalitis (AE) presents with diverse neuropsychiatric symptoms, complicating early diagnosis, especially in children. This case highlights challenges in diagnosing seronegative AE with comorbid ADHD and anxiety in a young girl.

Area of Science:

  • Neuroscience
  • Immunology
  • Pediatrics

Background:

  • Autoimmune encephalitis (AE) encompasses a spectrum of neurological disorders with varied clinical presentations.
  • Neuropsychiatric symptoms are common in AE, often delaying diagnosis and treatment.
  • Pediatric AE diagnosis is particularly challenging due to symptom overlap with typical childhood behaviors and comorbidities.

Purpose of the Study:

  • To highlight the diagnostic challenges of seronegative autoimmune encephalitis in children.
  • To emphasize the importance of considering AE in pediatric cases with neuropsychiatric symptoms.
  • To present a complex case of AE with comorbid Attention Deficit Hyperactivity Disorder (ADHD) and anxiety.

Main Methods:

  • Case report of a six-year-old girl with seronegative autoimmune encephalitis.
  • Detailed clinical presentation including neuropsychiatric symptoms, ADHD, and anxiety.
  • Review of diagnostic challenges in pediatric AE.

Main Results:

  • The patient presented with complex neuropsychiatric symptoms mimicking other childhood disorders.
  • Seronegative AE was diagnosed despite the absence of specific antibodies.
  • Comorbid ADHD and anxiety complicated the clinical picture and diagnostic process.

Conclusions:

  • Early diagnosis and management of AE are crucial for favorable outcomes.
  • Neuropsychiatric presentations in children warrant thorough investigation for underlying AE.
  • This case underscores the need for increased awareness and diagnostic strategies for pediatric AE, particularly seronegative forms.

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