SUMMARY The case of a 37 year old man with a longstanding HLA-B27 associated bilateral Achilles tendinitis without seronegative spondyloarthropathy is reported. This case suggests that heel enthesopathy may for a long time be the only clinical manifestation of the HLA-B27 associated disease process.

SUMMARY Two B27 positive patients developed peripheral arthritis immediately after a significant musculoskeletal injury. Unlike previously reported peripheral arthritis precipitated by trauma in B27 positive subjects the arthritis was rapidly destructive.