Coexisting Amyloid Positivity and Probable Dementia With Lewy Bodies in a Patient With Rapid Eye Movement Sleep Behavior Disorder

Jae Hyeok Choi; Seungju Kim; Jaeyeong Bae; Jiwon Lim; Youngsoon Yang; Ik Dong Yoo; Kwang Ik Yang

doi:10.12659/AJCR.952151

24 June 2026 : Case report South Korea

Coexisting Amyloid Positivity and Probable Dementia With Lewy Bodies in a Patient With Rapid Eye Movement Sleep Behavior Disorder

Challenging differential diagnosis, Unusual or unexpected effect of treatment, Rare coexistence of disease or pathology

Jae Hyeok Choi^{ABCDEF 1}, Seungju Kim^{B 1}, Jaeyeong Bae

^{B 1}, Jiwon Lim

^{D 1,2}, Youngsoon Yang^{BD 1}, Ik Dong Yoo

^{CD 3}, Kwang Ik Yang^{ADEG 1,2*}

DOI: 10.12659/AJCR.952151

Am J Case Rep 2026; 27:e952151

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Figure 2 18F-florapronol amyloid PET (A, B) showing abnormal amyloid deposits observed in the frontal, parietal, temporal, and occipital lobes. Global cortical SUVR was 1.78. (The reference region was cerebellar gray matter.) PET, positron emission tomography; SUVR, standardized uptake value ratio.

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Coexisting Amyloid Positivity and Probable Dementia With Lewy Bodies in a Patient With Rapid Eye Movement Sleep Behavior Disorder

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