We describe a case of remitting symmetrical seronegative synovitis with pitting edema (RS3PE) syndrome in the elderly. We receive a patient of 82 years, followed for blood pressure, for pain in both hands sudden onset in 72 hours. He complains of schedule inflammatory pain in the hands and wrists. We find edematous swelling at the two wrists and the dorsal surface of the fingers, without paresthesia, without deformation of fingers. We do not notice the presence of arthritic nodules. These inflammatory pains remain isolated: he does not complain of back pain, or in other peripheral joint sites, like knees or at the shoulder and pelvic area. Laboratory tests show inflammatory syndrome, with an increase in CRP (80 mmol/L), but without elevation of the erythrocyte sedimentation rate, which is consistent with an acute impairment. Antibodies related to rheumatoid arthritis are negative. In fact, the immunological tests with rheumatoid serology are negative. Anti-CCP antibodies are negative also. Antibodies, relative to other autoimmune diseases, like Sjogren’s syndrome, are negative. X-rays of both hands and wrists do not show bone involvement, such as erosion. A RS3PE syndrome is diagnosed. Search for a causal neoplasia is normal. We note a real improvement with corticosteroids for our patient: clinical and biological improvement obtained in 1 week with corticosteroids, in low doses to 20 mg per day. Regression of corticosteroids has been made progressively. At 3 months, the patient had no pain in 5 mg of corticosteroids. At 6 months, the patient had no complaints without corticosteroids. RS3PE syndrome is an inflammatory arthritis affecting the elderly electively 65% of patients over 70 years [1]. It is more common in men. The onset is typically sudden, all symptoms settling in 24–48 hours. It has been described by McCarty et al. with ten observations, which, although meeting the criteria for rheumatoid arthritis, is distinguished by a unique clinical