Flow Cytometric Immune Profiling in Infliximab-Associated Tuberculosis.

Tumor necrosis factor α antagonists are increasingly used to treat inflammatory and autoimmune disorders and are associated with increased risk of active tuberculosis. Diagnosis of active tuberculosis in patients taking tumor necrosis factor α antagonists can be challenging owing to increased incidence of extrapulmonary manifestations and false-negative results on current available diagnostic tests. We present a case of a young woman on infliximab for ulcerative colitis who presented with disseminated tuberculosis.