Main Page | See live article | Alphabetical index In medicine, gallium imaging is a radiopharmaceutical method to detect infections and cancer. Radioactive gallium-67 binds to transferrin, leukocyte lactoferrin, bacterial siderophores, and inflammatory proteins. It is also taken up by cancer cells in an increased amount. An increased uptake and, thus, increased radiation levels, indicates an infection of cancer. Gallium imaging is becoming an obsolete technique, with indium leukocyte imaging and technetium antigranulocyte antibodies replacing it as a detection mechanism for infections. For detection of tumors, especially lymphoma, it is still in use, but is likely to be replaced by PET imaging in the future. This article is from Wikipedia. All text is available under the terms of the GNU Free Documentation License.