LCT and autoimmune polyendocrinopathy: Data from these papers were summarized using a standardized data form, including sex, age of onset, type of APS (primary, secondary), subtype of antibody (aCL, beta2GPI, LAC), subtype of chorea (focal‐hemichorea, generalized), structural imaging (CT or MRI), functional imaging (PET CT or PET MRI), therapy, evolution.