Table 1

Gallium scans results for detection of pulmonary Wegener disease activity

Gallium scan +Gallium scan −
Immunosuppressive treatment was not given in any of the 36 episodes without WG disease activity, and no cases of WG activity were diagnosed in the next three months. In those episodes diagnosed as WG disease activity, the diagnosis was histologically proved in two episodes and by clinical response in two episodes.
Wegener disease activity +4 (true positive)0 (false negative)
Wegener disease activity −13 (false positive)23 (true negative)