A case of noninfectious polyarthritis of over one year's duration with
calcaneal enthesopathy in a patient with visceral tuberculosis is rep
orted. This pattern, termed Poncet's disease, shares pathophysiologic
mechanisms with Freund's complete adjuvant-induced arthritis. Future s
tudies should include polymerase chain reaction studies to look for th
e tubercle bacillus in joint fluid or synovial biopsy specimens.