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</div><div><span>Culture - duodenal tissue</span></div></div>
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</noscript></div><div class="main"><div id="ency_summary"><p>A duodenal tissue culture is a laboratory exam to check a piece of tissue from the first part of the small intestine (duodenum). The test is to look for organisms that cause infection.</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>A piece of tissue from the first part of the small intestine is taken during an upper endoscopy (<a test="test" href="./003888.htm">esophagogastroduodenoscopy</a>, also called an EGD).</p><p>The sample is then sent to a lab. There it is placed in a special dish (culture media) that allows bacteria or viruses to grow. The sample is looked at under a microscope regularly to see if any organisms are growing. </p><p>Organisms that grow on the culture are identified.</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>This is a test done in a lab. The sample is collected during an EGD and biopsy procedure. Ask your health care provider how to prepare for this procedure.</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-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>A culture of duodenal tissue is done to check for bacteria or viruses that may lead to certain illnesses and conditions.</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-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>No harmful bacteria or viruses are found.</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-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>An abnormal finding means that harmful bacteria or a virus has been found in the tissue sample. Bacteria may include: </p><ul><li>Campylobacter</li><li><em>Helicobacter pylori (H pylori)</em></li><li>Salmonella </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-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>Risks of this test include:</p><ul><li>Bleeding</li><li>Perforation of (poking a hole in) the gastrointestinal tract by the scope</li><li>Infection</li></ul><p>Some people may not be able to have this test because of other medical conditions.</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-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>Other tests are very often done to look for infection-causing organisms in duodenal tissue. These tests include the urease test (for example, the CLO test) and histology (looking at the tissue under a microscope).</p><p>Routine culture for <em>H pylori</em> is not currently recommended. </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>Duodenal tissue culture</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/9280t.jpg" alt="Duodenal tissue culture" title="Duodenal tissue culture" class="side-img"/><a href="../imagepages/9280.htm">Duodenal tissue culture</a></li>
</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>Fritsche TR, Pritt BS. Medical parasitology. In: McPherson RA, Pincus MR, eds.<em> Henry's Clinical Diagnosis and Management by Laboratory Methods</em>. 24th ed. Philadelphia, PA: Elsevier; 2022:chap 63.</p><p>Lauwers GY, Mino-Kenudson M, Kradin RL. Infections of the gastrointestinal tract. In: Kradin RL, ed. <em>Diagnostic Pathology of Infectious Disease</em>. 2nd ed. Philadelphia, PA: Elsevier; 2018:chap 10.</p><p>McQuaid KR. Approach to the patient with gastrointestinal disease. In: Goldman L, Cooney KA, eds. <em>Goldman-Cecil Medicine</em>. 27th ed. Philadelphia, PA: Elsevier; 2024:chap 118.</p><p>Siddiqi HA, Rabinowitz S, Axiotis CA. Laboratory diagnosis of gastrointestinal and pancreatic disorders. In: McPherson RA, Pincus MR, eds.<em> Henry's Clinical Diagnosis and Management by Laboratory Methods</em>. 24th ed. Philadelphia, PA: Elsevier; 2022:chap 23.</p></div></div></section>
<section><div class="section"><div class="section-header"><div class="section-title"><h2>Review Date 6/11/2024</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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<div id="section-version" class="section-body"><p>Updated by: Jenifer K. Lehrer, MD, Department of Gastroenterology, Aria - Jefferson Health Torresdale, Jefferson Digestive Diseases Network, Philadelphia, PA. Review provided by VeriMed Healthcare Network. Also reviewed by David C. Dugdale, MD, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team. </p>
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