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gallium scan |
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gallium scan, a nuclear scan of the total body performed after an IV injection of radioactive gallium, a radionuclide that concentrates in areas of inflammation and infection, abscess, and benign and malignant tumor. It is useful in detecting metastatic tumor, especially lymphoma. gallium a chemical element, atomic number 31, atomic weight 69.72, symbol Ga. See Table 6. gallium-67 a radioisotope of gallium having a half-life of 78.1 hours; used in the imaging of soft tissue tumors. gallium nitrate used in the treatment of hypercalcemia. gallium scan a nuclear medicine procedure using the radioisotope gallium-67 in the form of gallium citrate. Gallium has a high affinity for certain tumors and also for non-neoplastic lesions, such as abscesses. Gallium scans are particularly useful in the staging of lymphomas, and in localizing occult abscesses. gallium scan Nuclear medicine A radioscintillation imaging method in which 67gallium citrate–T1/2, 25 days, is injected IV, and images of its pattern of distribution are obtained; GS is used to stage lymphoma, lung CA,
hepatoma, melanoma, metastases–to bone, brain, lung, head & neck, GI and genitourinary neoplasia How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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| Findings on computed tomography (CT) of her thorax were unremarkable, but a gallium scan was interpreted as showing bilateral enhancement of the lung parenchyma and the lacrimal glands. Gallium scans and FDG-PET are especially helpful in assessing these cases. |
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