title: Gallium citrate Ga 67 scanning: clinical usefulness in lymphoma patients.
abstract: Gallium citrate Ga 67 (67Ga) scans were performed in 50 consecutive lymphoma patients who underwent routine staging. The overall accuracy of 67Ga scans was greater than 80% for all nodal sites except the spleen (68%). Sensitivity was greater than 88% in the neck and mediastinum, 67% in the abdomen-pelvis, and 33% for the spleen. Specificity was greater than 85% for all nodal sites except for the mediastinum (67%). The accuracy of pedal lymphangiograms was 75%, sensitivity 87%, and specificity 68%. Gallium 67 scans complemented the lymphogram in the abdomen-pelvis but, due to limited sensitivity and high number of equivocal studies (16%), did not replace it. Infraclavicular, pectoral, and mediastinal lesions were detected by 67Ga scans when missed by other means. In 20% to 25% of patients, 67Ga scans provided information not afforded by other diagnostic studies and are therefore considered an important staging procedure for lymphoma patients.
mesh_terms: D000008:Abdominal Neoplasms / Q000175:diagnosis; D000293:Adolescent; D000328:Adult; D005260:Female; D005710:Gallium Radioisotopes; D006689:Hodgkin Disease / Q000175:diagnosis; D006801:Humans; D008220:Lymphography; D008223:Lymphoma / Q000175:diagnosis*; D016403:Lymphoma, Large B-Cell, Diffuse / Q000175:diagnosis; D008228:Lymphoma, Non-Hodgkin / Q000175:diagnosis; D008297:Male; D008479:Mediastinal Neoplasms / Q000175:diagnosis; D008875:Middle Aged; D010386:Pelvic Neoplasms / Q000175:diagnosis; D011877:Radionuclide Imaging
chemical_list: D005710:Gallium Radioisotopes