Title: What's the Diagnosis? Case by Dr. Sam Ghali (@EM_Resus)<br/>Author: Haney Mallemat<br/><a href='http://umem.org/profiles/faculty/785/'>[Click to email author]</a><hr/><p class="p1">
        <span class="s1">66 year-old male presents with pain & swelling of his right upper arm for 2 days. He has a history of hypertension, diabetes, and renal transplant. Vital signs are normal. What's the diagnosis?</span></p>
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        <img alt="" src="https://umem.org/files/uploads/content/pearls/visual_diagnosis/av_fistula.gif" style="width: 550px;" /></p>

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