Complex partial status epilepticus revealing anti-NMDA receptor encephalitis

Area of Science:

• Neuroimmunology
• Oncology

Background:

• Anti-NMDA receptor encephalitis is a paraneoplastic autoimmune disorder.
• It is characterized by a prodromal phase, followed by memory loss, psychiatric symptoms, seizures, and movement disorders.
• Ovarian teratoma is a common associated malignancy.

Observation:

• This case report details anti-NMDA receptor encephalitis presenting with complex partial status epilepticus.
• Early abnormal movements were misdiagnosed as recurrent epileptic seizures.
• The diagnostic challenge highlights the importance of recognizing atypical presentations.

Findings:

• The study highlights a case of anti-NMDA receptor encephalitis with an ovarian teratoma.
• Complex partial status epilepticus was the initial presenting neurological manifestation.
• Misinterpretation of early abnormal movements as seizures complicated diagnosis.

Implications:

• Clinicians treating epilepsy and movement disorders must be aware of anti-NMDA receptor encephalitis.
• Early surgical intervention for associated teratomas can lead to favorable neurological outcomes.
• Despite its severity, anti-NMDA receptor encephalitis is a potentially curable condition.