<p><strong>Gastric cancer</strong> can develop in any part of the <a title="Stomach" href="/wiki/Stomach"><font color="#002bb8">stomach</font></a> and may spread throughout the stomach and to other organs; particularly the <a title="Esophagus" href="/wiki/Esophagus"><font color="#002bb8">esophagus</font></a>, <a class="mw-redirect" title="Lungs" href="/wiki/Lungs"><font color="#002bb8">lungs</font></a> and the <a title="Liver" href="/wiki/Liver"><font color="#002bb8">liver</font></a>. Stomach cancer causes about 800,000 deaths worldwide per year.<sup id="cite_ref-WHO_0-0" class="reference"><a href="#cite_note-WHO-0"><font size="2"><font color="#002bb8"><span>[</span>1<span>]</span></font></font></a></sup></p>
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<h2>Contents</h2>
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<li class="toclevel-1 tocsection-1"><a href="#Signs_and_symptoms"><font color="#002bb8"><span class="tocnumber">1</span> <span class="toctext">Signs and symptoms</span></font></a> </li>
<li class="toclevel-1 tocsection-2"><a href="#Causes"><font color="#002bb8"><span class="tocnumber">2</span> <span class="toctext">Causes</span></font></a> </li>
<li class="toclevel-1 tocsection-3"><a href="#Diagnosis"><font color="#002bb8"><span class="tocnumber">3</span> <span class="toctext">Diagnosis</span></font></a>
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<li class="toclevel-2 tocsection-4"><a href="#Histopathology"><font color="#002bb8"><span class="tocnumber">3.1</span> <span class="toctext">Histopathology</span></font></a> </li>
<li class="toclevel-2 tocsection-5"><a href="#Staging"><font color="#002bb8"><span class="tocnumber">3.2</span> <span class="toctext">Staging</span></font></a> </li>
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<li class="toclevel-1 tocsection-6"><a href="#Management"><font color="#002bb8"><span class="tocnumber">4</span> <span class="toctext">Management</span></font></a>
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<li class="toclevel-2 tocsection-7"><a href="#Surgery"><font color="#002bb8"><span class="tocnumber">4.1</span> <span class="toctext">Surgery</span></font></a> </li>
<li class="toclevel-2 tocsection-8"><a href="#Chemotherapy"><font color="#002bb8"><span class="tocnumber">4.2</span> <span class="toctext">Chemotherapy</span></font></a> </li>
<li class="toclevel-2 tocsection-9"><a href="#Radiation_therapy"><font color="#002bb8"><span class="tocnumber">4.3</span> <span class="toctext">Radiation therapy</span></font></a> </li>
<li class="toclevel-2 tocsection-10"><a href="#Multimodality_therapy"><font color="#002bb8"><span class="tocnumber">4.4</span> <span class="toctext">Multimodality therapy</span></font></a> </li>
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<li class="toclevel-1 tocsection-11"><a href="#Epidemiology"><font color="#002bb8"><span class="tocnumber">5</span> <span class="toctext">Epidemiology</span></font></a> </li>
<li class="toclevel-1 tocsection-12"><a href="#References"><font color="#002bb8"><span class="tocnumber">6</span> <span class="toctext">References</span></font></a> </li>
<li class="toclevel-1 tocsection-13"><a href="#External_links"><font color="#002bb8"><span class="tocnumber">7</span> <span class="toctext">External links</span></font></a> </li>
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<h2><span id="Signs_and_symptoms" class="mw-headline">Signs and symptoms</span></h2>
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