[Palindromic rheumatism].

49 cases of palindromic rheumatism with a follow-up of 25 years, are reported. More than half of the patients (58%) had their first symptoms between the age of 20 and 39. The knee was the joint the most frequently affected. Five patients had later a rheumatoid arthritis, one had a psoriatic rheumatism, one a cutaneous vasculitis and one had a sero-negative spondylarthropathy. Two patients were completely cured.