Neuro-Behcet's Masquerading as Status Epilepticus and Meningoencephalitis in the Emergency Department.

Background: Behcet disease (BD) is a rare small vessel vasculitis that commonly manifests as recurrent painful oral or genital ulcerations, uveitis, and skin lesions. Some patients with BD develop neurological symptoms termed neuro-Behcet's disease. In the emergency department setting, these symptoms can be mistaken for other common acute issues including stroke, infection, epilepsy, multiple sclerosis, toxin ingestion, or psychiatric conditions.

Case Report: We present a case of a 28-year-old male with neuro-BD mimicking status epilepticus and meningoencephalitis. He was actively seizing on arrival and febrile at 103.8 F. The patient also had a history of vasculitis, uveitis, and genital lesions which raised suspicion for a rheumatological process. Cerebrospinal fluid samples were obtained and computed tomography of the head revealed no acute findings. The patient was started on treatment for seizure and meningoencephalitis and admitted to neurology for continuous electroencephalogram monitoring with additional consults placed for rheumatology, ophthalmology, and infectious disease. The patient was ultimately diagnosed with neuro-Behcet's disease and treated appropriately. WHY SHOULD AN EMERGENCY PHYSICIAN BE AWARE OF THIS?: In a patient presenting with neurological symptoms and signs of rheumatological disease providers should consider neuro-Behcet's disease as a differential diagnosis. This case exemplifies the vital role of reviewing past medical history to expand differential diagnoses and early coordination with specialists so treatment can be initiated early to prevent morbidity and mortality. The case will also review different presentations of this unfamiliar diagnosis for a more comprehensive understanding.