Isolated multidrug-resistant tubercular tenosynovitis of the flexor tendon of the little finger.

Isolated multidrug-resistant (MDR) tubercular tenosynovitis of the flexor tendons of finger without involvement of wrist is a rare presentation. Tenosynovitis of hand is an uncommon manifestation of extrapulmonary tuberculosis. Pyogenic flexor tenosynovitis of hand is frequently seen and is the closest differential. Non-specific clinical signs may lead to delay in diagnosis, which is often made after biopsy. Management includes surgical excision of necrotic tissue and infected synovium along with antitubercular therapy after histopathological diagnosis. MDR tuberculosis of hand is extremely rare and, to the best of our knowledge, has not been reported in the literature so far. We report an interesting case of MDR tubercular flexor tendon tenosynovitis of the little finger without any pulmonary involvement in an immunocompetent patient. The case was managed by complete synovectomy and second-line antitubercular therapy with complete resolution of disease and had no functional limitation.