They're inconsistent typos. Likely meant Lewy bodies.
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"In this disease, tiny clumps of proteins known as Lewy bodies appear in the nerve cells of the brain. Lewy bodies are named after FH Lewy, the German doctor who first identified them. Lewy bodies cause a range of symptoms, some of which are shared by Alzheimer's disease and some by Parkinson's disease."
ThankQ!