Antiphospholipid-Related Chorea: Two Case Reports and Role of Metabolic Imaging.

Background: Antiphospholipid syndrome (APS) is a complex acquired autoimmune disease with a wide clinical spectrum. Chorea is a rare neurological manifestation of APS.

Cases: We report two elderly patients with APS-related chorea in whom functional imaging (18F-FDG positron emission tomography, FDG-PET) supported the diagnosis and compare our findings with existing literature.