<a href="https://en.wikipedia.org/wiki/CT_scan" class="extiw" title="en:CT scan">CT scan</a> with upper limits (97.5th percentile of normal population) of the thickness of the <a href="https://en.wikipedia.org/wiki/Prevertebral_space" class="extiw" title="en:Prevertebral space">prevertebral space</a> at the levels of different <a href="https://en.wikipedia.org/wiki/Cervical_vertebra" class="extiw" title="en:Cervical vertebra">cervical vertebrae</a>. 
<ul><li>Source image: <a href="//commons.wikimedia.org/wiki/File:Computed_tomographs_of_normal_cervical_vertebrae,_sagittal_plane_25.jpg" title="File:Computed tomographs of normal cervical vertebrae, sagittal plane 25.jpg">File:Computed tomographs of normal cervical vertebrae, sagittal plane 25.jpg</a></li>
<li>Reference: <cite style="font-style:normal"> (2009). "Normal Thickness and Appearance of the Prevertebral Soft Tissues on Multidetector CT". <i>American Journal of Neuroradiology</i> <b>30</b> (1): 136–141. <a href="https://en.wikipedia.org/wiki/Digital_object_identifier" class="extiw" title="w:Digital object identifier">DOI</a>:<a rel="nofollow" class="external text" href="https://doi.org/10.3174/ajnr.A1307">10.3174/ajnr.A1307</a>. <a href="https://en.wikipedia.org/wiki/International_Standard_Serial_Number" class="extiw" title="en:International Standard Serial Number">ISSN</a> <a rel="nofollow" class="external text" href="https://www.worldcat.org/issn/0195-6108">0195-6108</a>.</cite></li></ul>
<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>: Written informed consent was obtained from the individual, including online publication.
<span class="int-own-work" lang="en">Own work</span>