Coexistence of Rheumatoid Arthritis, Systemic Lupus Erythematosus, Sjogren Syndrome, Antiphospholipid Syndrome, and Ankylosing Spondylitis

Figure 1

Sacroiliitis. (a) X-ray pelvis shows right-sided sacroiliitis. (b, c) Bilateral sacroiliitis on MRI. Photo: courtesy of the patient.