Polarized light microscopy of gout, showing needle-shaped crystals with negative birefringence.
<div class="thumb tright"><div class="thumbinner" style="width:137px;"><a href="//commons.wikimedia.org/wiki/File:Mikael_H%C3%A4ggstr%C3%B6m_at_pathology_in_2019_(crop).jpg" class="image"><img src="https://upload.wikimedia.org/wikipedia/commons/thumb/f/f1/Mikael_H%C3%A4ggstr%C3%B6m_at_pathology_in_2019_%28crop%29.jpg/135px-Mikael_H%C3%A4ggstr%C3%B6m_at_pathology_in_2019_%28crop%29.jpg" decoding="async" width="135" height="159" class="thumbimage" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/f/f1/Mikael_H%C3%A4ggstr%C3%B6m_at_pathology_in_2019_%28crop%29.jpg/203px-Mikael_H%C3%A4ggstr%C3%B6m_at_pathology_in_2019_%28crop%29.jpg 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/f/f1/Mikael_H%C3%A4ggstr%C3%B6m_at_pathology_in_2019_%28crop%29.jpg/270px-Mikael_H%C3%A4ggstr%C3%B6m_at_pathology_in_2019_%28crop%29.jpg 2x" data-file-width="1439" data-file-height="1697"></a>  <div class="thumbcaption"><div class="magnify"><a href="//commons.wikimedia.org/wiki/File:Mikael_H%C3%A4ggstr%C3%B6m_at_pathology_in_2019_(crop).jpg" class="internal" title="Enlarge"></a></div><a href="//commons.wikimedia.org/wiki/User:Mikael_H%C3%A4ggstr%C3%B6m" title="User:Mikael Häggström">Mikael Häggström</a>, <a href="https://en.wikipedia.org/wiki/Medical_Doctor" class="extiw" title="en:Medical Doctor">M.D.</a> <a href="//commons.wikimedia.org/wiki/Mikael_H%C3%A4ggstr%C3%B6m" class="mw-redirect" title="Mikael Häggström">Author info</a><br> - <a href="//commons.wikimedia.org/wiki/User:Mikael_H%C3%A4ggstr%C3%B6m#Reusing_images" title="User:Mikael Häggström">Reusing images</a><br>- Conflicts of interest:<br>  None</div></div></div>
<a href="//commons.wikimedia.org/wiki/User:Mikael_H%C3%A4ggstr%C3%B6m" title="User:Mikael Häggström">Mikael Häggström</a>, <a href="https://en.wikipedia.org/wiki/Medical_Doctor" class="extiw" title="en:Medical Doctor">M.D.</a><br><b>Consent note</b>: Consent from the patient or patient's relatives is regarded as redundant, because of absence of identifiable features (<a rel="nofollow" class="external text" href="https://research.ucr.edu/ori/committees/irb-clin/hipaa/hipaa-phi-identifiers">List of HIPAA identifiers</a>) in the media and case information (<a rel="nofollow" class="external text" href="https://research.ucr.edu/media/34266/hipaa_case_reports.pdf">See also HIPAA case reports guidance</a>).
<span class="int-own-work" lang="en">Own work</span>