Paraneoplastic neurologic disorders in children.

Area of Science:

• Pediatric Neurology
• Neuro-oncology
• Immunology

Background:

• Paraneoplastic neurologic syndromes (PNS) are rare, severe neurological disorders impacting the developing brain.
• Increased interest in immunotherapy for PNS highlights potential treatment avenues.
• Early recognition of PNS in children aids in pediatric cancer detection and reduces neurological damage.

Purpose of the Study:

• To review the clinical presentation, immunology, long-term outcomes, and management of pediatric PNS.
• To focus on commonly occurring pediatric PNS: opsoclonus-myoclonus ataxia, limbic encephalitis, and anti-NMDAR encephalitis.

Main Methods:

• Review of presenting symptoms.
• Analysis of immunological markers.
• Evaluation of management strategies.
• Focus on specific pediatric PNS subtypes.

Main Results:

• PNS can lead to significant neurological damage, a major cause of morbidity in pediatric cancer survivors.
• Opsoclonus-myoclonus ataxia, limbic encephalitis, and anti-NMDAR encephalitis are frequently observed in children.
• Child neurologists are crucial for diagnosis, tumor detection, and managing neurological sequelae.

Conclusions:

• Prompt recognition and diagnosis of PNS in children are vital for timely cancer treatment and minimizing neurological impact.
• Multisite collaborative efforts are essential for standardizing the characterization and treatment of rare pediatric PNS.
• Effective management requires a coordinated approach involving neurologists and oncologists throughout the treatment continuum.