Authors report a case of sheathing panarthritis associated with Felty
syndrom and lower limb ulcers in a 60-year-old woman, with a fatal out
come. The seropositive polyarthritis united destructive features and j
oint ankylosis. It is not clear wether this radio-clinical picture is
an autonomous affection, a rheumatoid arthritis or an ankylosing spond
ylarthritis. Nevertheless, the coexistence of destructive lesions of t
he extremities with Felty syndrome leads us to believe that sheathing
polyarthritis is a particular pattern of rheumatoid arthritis.