A 56-year-old man presents for evaluation of cognitive decline. He is diagnosed with major neurocognitive disorder due to another medical condition. Serum analysis is notable for elevated anti-double-stranded DNA antibodies. Which of the following is the most likely cause of this patient’s neurocognitive disorder? Ankylosing spondylitis Rheumatoid arthritis Scleroderma Systemic lupus erythematosus
