Summary

Rheumatoid arthritis (RA) is an autoimmune chronic inflammatory disease characterized by synovitis leading to polyarthritis. It affects 1% of the population [1]. Genetic and environmental factors are linked to the development of RA and include the presence of HLA-DR4 and shared epitope, and smoking is the primary representative of the negative environmental factor [1].

However, RA mainly affects middle age. Late-onset RA that initiates after 60 years is sometimes named elderly onset rheumatoid arthritis (EORA) [2]. This disease's prevalence varied from 2.03% to 2.34% in a large study in the United States. EORA affects more women than men [1]. However, to the best of our knowledge, no patient description of RA initiated at 97 years of age has been described.