Cartilaginous and capsular lesions in systemic lupus erythematosus (SLE),
such as diffuse joint space narrowing (JSN) and synovial proliferation, are usually
mild. Erosions and pressure cause destruction of cartilages in SLE due to misalignment
of joint structures. However, cartilage changes and synovial proliferation are seen in
lupus arthropathy. Especially in rhupus, which is thought to be a complication of
rheumatoid arthritis, cartilaginous and synovial changes are significant findings. Joint
effusions and intra-articular calcifications may also be seen. This chapter will focus on
intra-articular lesions, category “C” in SLE.
Keywords: Capsular changes, Cartilaginous changes, Joint effusions, Joint space narrowing, Synovial proliferation, Systemic lupus erythematosus (SLE).
