“…Gallium-67 scintigraphy demonstrated multiple uptake areas with a good correlation in all lesions of both patients, being useful in the diagnosis, staging and therapy planning (6) , considering that, in association with conventional imaging methods, gallium-67 scintigraphy constitutes a relevant complementary method for detecting occult lesions and guiding changes in the management of patients with post-chemotherapy residual tumor activity. Therefore, the present cases demonstrate the relevant role of gallium-67 scintigraphy in the detection of the disease extent and in the evaluation of the patient's response to therapy, by demonstrating, or not, the tumor activity (8) . In the authors' institution gallium-67 scintigraphy is also utilized in the follow-up of these patients for monitoring residual disease.…”