“…1 A previous cross-sectional study demonstrated a higher prevalence of autoimmune diseases among patients with LP when compared with healthy control subjects. 11 In that study, the comorbid state of LP patients and control subjects was determined by the presence of one of the following autoimmune diseases: SLE, Sj€ ogren's syndrome, RA, Graves' disease, Hashimoto's disease, alopecia areata, vitiligo, Crohn's disease, ulcerative colitis, primary biliary cirrhosis, haemolytic anaemia, giant cell arteritis, multiple sclerosis, type 1 diabetes mellitus, chronic glomerulonephritis, systemic sclerosis, pulmonary fibrosis, chronic urticaria, psoriasis, Addison's disease, immune thrombocytopenia and coeliac disease. However, detailed analyses of the possible associations of LP with distinct autoimmune diseases have not been performed.…”