Concurrence of Rheumatoid Arthritis and Ankylosing Spondylitis: Analysis of Seven Cases and Literature Review.
Flores-Robles Bryan-JosuéEztizen Labrador-SánchezEstíbaliz Andrés-TrasahedoValvanera Pinillos-AransayMaría-Yasmina Joven-ZapataLaura Torrecilla LerenaSalazar-Asencio Osman-AlbertoJuan-Antonio López-MartínPublished in: Case reports in rheumatology (2022)
The coexistence of RA and AS is highly uncommon. With the data obtained in this review, it seems that there exist erosive radiological patterns, positivity for RF, involvement of the axial skeleton, and rheumatoid nodules at a higher frequency than those patients with a single diagnosis of the two entities. More data are needed to corroborate this association.