Case report 591: Osteoarthrosis (OA) of hip associated with microscopic gouty tophi.

It has been demonstrated in this 58-year old woman that osteoarthrosis OA coexisted in a hip with microscopic gouty tophi. It is demonstrated that the bone erosions around the hip in this case were due to OA and not gouty arthritis. It is believed that OA is not a consequence of gout and that such an association between gout and OA is exceptional. It is maintained that a true association exists between OA and ochronosis while a relationship may exist between OA and chondrocalcinosis, but the nature of this relationship is not clear.