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</div><div><span>Gallium scan</span></div></div>
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</a><h1 class="with-also" itemprop="name">Gallium scan</h1>
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</noscript></div><div class="main"><div id="ency_summary"><p>A gallium scan is a test to look for swelling (inflammation), infection, or cancer in the body. It uses a radioactive material called gallium and is a type of <a test="test" href="./003827.htm">nuclear medicine</a> exam.</p><p>A related test is a <a test="test" href="./003824.htm">gallium scan of the lung</a>. </p></div><section><div class="section"><div class="section-header"><div class="section-title"><h2>How the Test is Performed</h2></div><div class="section-button"><button type="submit" aria-controls="section-1" role="button" title="Expand/Collapse section"><span class="icon icon-section-action">
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</div></div><div class="section-body" id="section-1"><p>You will get gallium injected into your vein. Gallium is a radioactive material. The gallium travels through the bloodstream and collects in the bones and certain organs.</p><p>Your health care provider will tell you to return at a later time to be scanned. The scan will take place 6 to 48 hours after the gallium is injected. The test time depends on what condition your doctor is looking for. In some cases, people are scanned more than once. </p><p>You will lie on your back on the scanner table. A special camera detects where the gallium has gathered in the body.</p><p>You must lie still during the scan, which takes 30 to 60 minutes.</p></div></div></section><section><div class="section"><div class="section-header"><div class="section-title"><h2>How to Prepare for the Test</h2></div><div class="section-button"><button type="submit" aria-controls="section-2" role="button" title="Expand/Collapse section"><span class="icon icon-section-action">
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</div></div><div class="section-body" id="section-2"><p>Stool in the bowel can interfere with the test. You may need to take a laxative the night before you have the test. Or, you may get an enema 1 to 2 hours before the test. You may eat and drink liquids normally. </p><p>You will need to sign a consent form. You will need to take off all jewelry and metal objects before the test.</p></div></div></section><section><div class="section"><div class="section-header"><div class="section-title"><h2>How the Test will Feel</h2></div><div class="section-button"><button type="submit" aria-controls="section-3" role="button" title="Expand/Collapse section"><span class="icon icon-section-action">
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</div></div><div class="section-body" id="section-3"><p>You will feel a sharp prick when you get the injection. The site may be sore for a few minutes.</p><p>The hardest part of the scan is holding still. The scan itself is painless. The technician can help make you comfortable before the scan begins.</p></div></div></section><section><div class="section"><div class="section-header"><div class="section-title"><h2>Why the Test is Performed</h2></div><div class="section-button"><button type="submit" aria-controls="section-4" role="button" title="Expand/Collapse section"><span class="icon icon-section-action">
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</div></div><div class="section-body" id="section-4"><p>This test is rarely performed. It may be done to look for the cause of a fever that has lasted a few weeks without an explanation.</p></div></div></section><section><div class="section"><div class="section-header"><div class="section-title"><h2>Normal Results</h2></div><div class="section-button"><button type="submit" aria-controls="section-5" role="button" title="Expand/Collapse section"><span class="icon icon-section-action">
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</div></div><div class="section-body" id="section-5"><p>Gallium normally collects in bones, the liver, spleen, the large bowel, and breast tissue.</p></div></div></section><section><div class="section"><div class="section-header"><div class="section-title"><h2>What Abnormal Results Mean</h2></div><div class="section-button"><button type="submit" aria-controls="section-6" role="button" title="Expand/Collapse section"><span class="icon icon-section-action">
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</div></div><div class="section-body" id="section-6"><p>Gallium detected outside normal areas can be a sign of:</p><ul><li>Infection</li><li>Inflammation</li><li>Tumors, including <a test="test" href="./000580.htm">Hodgkin disease</a> or <a test="test" href="./000581.htm">non-Hodgkin lymphoma</a></li></ul><p>The test may be done to look for lung conditions such as:</p><ul><li>Primary <a test="test" href="./000112.htm">pulmonary hypertension</a></li><li><a test="test" href="./000132.htm">Pulmonary embolus</a></li><li>Respiratory infections, most often <em>Pneumocystis jirovecii</em>
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pneumonia
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</li><li><a test="test" href="./000076.htm">Sarcoidosis</a></li><li><a test="test" href="./000429.htm">Scleroderma</a> of the lung</li><li>Tumors in the lung </li></ul></div></div></section><section><div class="section"><div class="section-header"><div class="section-title"><h2>Risks</h2></div><div class="section-button"><button type="submit" aria-controls="section-7" role="button" title="Expand/Collapse section"><span class="icon icon-section-action">
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</div></div><div class="section-body" id="section-7"><p>There is a small risk for radiation exposure. This risk is less than that with <a test="test" href="./003337.htm">x-rays</a> or CT scans. Pregnant or nursing women and young children should avoid radiation exposure if at all possible.</p></div></div></section><section><div class="section"><div class="section-header"><div class="section-title"><h2>Considerations</h2></div><div class="section-button"><button type="submit" aria-controls="section-8" role="button" title="Expand/Collapse section"><span class="icon icon-section-action">
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</div></div><div class="section-body" id="section-8"><p>Not all cancers show up on a gallium scan. Areas of inflammation, such as recent surgical scars, may show up on the scan. However, they do not necessarily indicate an infection. </p></div></div></section><section><div class="section"><div class="section-header"><div class="section-title"><h2>Alternative Names</h2></div><div class="section-button"><button type="submit" aria-controls="section-Alt" role="button" title="Expand/Collapse section"><span class="icon icon-section-action">
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</div></div><div class="section-body" id="section-Alt"><p>Liver gallium scan; Bony gallium scan</p></div></div></section><section><div class="section sec-mb"><div class="section-header"><div class="section-title"><h2>Images</h2></div><div class="section-button"><button type="submit" aria-controls="section-tnails" role="button" title="Expand/Collapse section"><span class="icon icon-section-action">
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<li><img src="//medlineplus.gov/ency/images/ency/tnails/9595t.jpg" alt="Gallium injection" title="Gallium injection" class="side-img"/><a href="../imagepages/9595.htm">Gallium injection</a></li>
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</ul></div></div></section><section><div class="section"><div class="section-header"><div class="section-title"><h2>References</h2></div><div class="section-button"><button type="submit" aria-controls="section-Ref" role="button" title="Expand/Collapse section"><span class="icon icon-section-action">
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</div></div><div class="section-body" id="section-Ref"><p>Contreras F, Perez J, Jose J. Imaging overview. In: Miller MD, Thompson SR, eds. <em>DeLee, Drez, & Miller's Orthopaedic Sports Medicine</em>. 5th ed. Philadelphia, PA: Elsevier; 2020:chap 7.</p><p>Harisinghani MG, Chen JW, Weissleder R. Imaging physics. In: Harisinghani MG, Chen JW, Weissleder R, eds. <em>Primer of Diagnostic Imaging</em>. 6th ed. Philadelphia, PA: Elsevier; 2019:chap 14.</p><p>Squires JH, Narayanan S, Tadros S. Fundamentals of pediatric radiology. In: Zitelli BJ, McIntire SC, Nowalk AJ, Garrison J, eds. <em>Zitelli and Davis' Atlas of Pediatric Physical Diagnosis</em>. 8th ed. Philadelphia, PA: Elsevier; 2023:chap 25.</p></div></div></section>
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<section><div class="section"><div class="section-header"><div class="section-title"><h2>Review Date 7/5/2022</h2></div><div class="section-button"><button type="submit" aria-controls="section-version" role="button" title="Expand/Collapse section"><span class="icon icon-section-action">
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