Evaluation of residual masses after lymphoma treatment: the contribution of gallium 67 tomoscintigraphy.

19 tomoscintigraphies using gallium 67 were performed in 15 patients with Hodgkin's or non-Hodgkin's lymphoma who had a residual mass after treatment. The isotope was never fixed in fibrous masses but was always concentrated in actively growing masses. In five cases histology confirmed these findings. It is recommended that scintigraphy should be considered in every case with a residual mass after treatment, where a decision regarding further treatment is required.