2 CASES OF CHRONIC ARTHRITIS OF THE FOREARM DUE TO MYCOBACTERIUM-TUBERCULOSIS

In the absence of coexisting active pulmonary disease, tuberculosis is frequently not considered in the differential diagnosis of chronic in flammation of the joints. The cases of two immigrant patients with tub erculous arthritis involving the forearm are reported. In both cases n on-specific arthritis or trauma was suspected, resulting in a delay be tween the onset of symptoms and institution of specific therapy of 21 and 24 months, respectively. Diagnosis was achieved by histological an d microbiological examination of synovial biopsy material. Polymerase chain reaction for Mycobacterium tuberculosis complex was positive in only one patient. Treatment consisted of antituberculosis chemotherapy , surgical synovectomy, and debridement of the affected joints. These cases serve as a reminder that, although rare, tuberculosis can cause chronic arthritis.