Case Reports

Worsening nausea, vomiting, and dizziness • 20-pound weight loss in 2 months • mild hearing loss • reoccurring episodes of falls • Dx?

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Our patient. After her diagnosis of NMOSD/MOG-antibody disease, our patient’s symptoms progressed to include vertigo, vestibular ataxia, pruritus, left foot drop, lower extremity numbness, and decreased hearing. After the second rituximab infusion her symptoms continued, but over time stabilized and have not worsened. She currently receives gabapentin 300 mg every 8 hours, as needed, for extremity numbness (which has been working well) along with sertraline 100 mg/d for depression.

Risk factors for NMOSD include female gender, Asian and African ethnicities, Epstein-Barr virus seropositivity, and tobacco abuse.

Subsequent office visits have showed no further weight loss. Based on the current response to the rituximab, her prognosis is undetermined by Neurology as they continue to monitor for progression.

THE TAKEAWAY

Vestibular ataxia, foot drop, pruritus, vertigo, decreased hearing, numbness, and oculomotor dysfunction in the presence of nausea and vomiting should raise suspicion for NMOSD. The presence of AQP4 antibodies along with demyelinating central nervous system lesions, is highly indicative of NMO. The presence of MOG antibodies may indicate NMOSD/MOG-antibody disease. The initial treatment of NMOSD is intravenous methylprednisolone, which can be followed by treatment with rituximab to achieve remission.

CORRESPONDENCE
Daniel Murphy, MD, FAAFP, Department of Family and Community Medicine, Texas Tech University Health Science Center El Paso, 9849 Kenworthy Street, El Paso, Texas 79924; Daniel.murphy@ttuhsc.edu

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