1 Rafaela Nicolau MD, Rheumatology Unit, Centro Hospitalar Tondela-Viseu, Viseu, and Faculty of Medicine, University of Porto, Porto.
2 Daniela Oliveira, MD, Faculty of Medicine, University of Porto, and Rheumatology Department, Centro Hospitalar e Universitário São João, Porto.
3 João Pacheco, MD, Anatomical Pathology Department, Centro Hospitalar e Universitário São João, Porto.
4 Pedro Madureira, MD, Faculty of Medicine, University of Porto, and Rheumatology Department, Centro Hospitalar e Universitário São João, Porto, Portugal.
Syphilis is a chronic venereal disease caused by Treponema pallidum (TP). Destructive arthritis is rare in its primary and secondary stages but can occur in the tertiary stage and its congenital form.