Neuromyelitis Optica Spectrum Disorders Mimicking Multiple Brain Tumors

Area of Science:

• Neuroimmunology
• Neurology
• Radiology

Background:

• Neuromyelitis optica spectrum disorders (NMOSD) are rare autoimmune conditions affecting the central nervous system.
• Differentiating NMOSD from other neurological conditions, such as brain tumors, is critical for effective treatment.

Observation:

• A 53-year-old woman presented with neurological deficits and multiple brain lesions on MRI, initially suspected to be brain tumors.
• Further investigation revealed spinal cord lesions and optic neuritis, characteristic of NMOSD.

Findings:

• The patient was diagnosed with NMOSD based on clinical presentation and neuroimaging findings.
• The brain lesions mimicked multiple brain tumors, including metastases, lymphoma, and high-grade glioma.

Implications:

• This case highlights the importance of considering NMOSD in the differential diagnosis of patients with multiple tumefactive brain lesions.
• Prompt diagnosis and treatment with immunosuppressive therapy are essential for managing NMOSD and preventing further neurological damage.