Tuberculous extensor tenosynovitis of the hand.

Tuberculous tenosynovitis is a rare manifestation of extrapulmonary tuberculosis (Tb), especially if solely the dorsal hand compartment is affected. In this report, we present the medical history of an immuno-competent 32-year-old man presented with a painful swelling of the right dorsal wrist. Initial inflammation onset had occurred 6 months before he consulted our service, resulting in consultation of several physicians and extensive diagnostic procedures without gaining a specific diagnosis. Finally, after extensive diagnostic tests, a tenosynovectomy was performed and tuberculosis-induced extensor tenosynovitis was detected. The diagnosis was established by positive histology, repeated specific PCR and T-SPOT.TB. Tuberculous tenosynovitis can easily be overlooked as a cause of chronic tenosynovitis particularly in immunocompetent young people lacking any risk factors.