Radiographic images of the ankle of a 42 year old soccer player with weight-bearing pain for 9 months, showing <a href="https://en.wikipedia.org/wiki/osteochondritis_dissecans" class="extiw" title="en:osteochondritis dissecans">osteochondritis dissecans</a> of parts of the superio-medial <a href="https://en.wikipedia.org/wiki/talus_bone" class="extiw" title="en:talus bone">talus</a>. There is necrosis of subchondral bone, formation of loose fragments, as well as gas formation in the joint space.
<p>The projections are:
</p>
<table class="wikitable"><tbody><tr><td><a href="https://en.wikipedia.org/wiki/Transverse_plane" class="extiw" title="en:Transverse plane">Transverse plane</a> by <a href="https://en.wikipedia.org/wiki/CT_scan" class="extiw" title="en:CT scan">CT scan</a></td>
<td><a href="https://en.wikipedia.org/wiki/Coronal_plane" class="extiw" title="en:Coronal plane">Coronal plane</a> CT
</td></tr><tr><td><a href="https://en.wikipedia.org/wiki/Sagittal_plane" class="extiw" title="en:Sagittal plane">Sagittal plane</a> CT</td>
<td>Anteroposterior <a href="https://en.wikipedia.org/wiki/Projectional_radiography" class="extiw" title="en:Projectional radiography">Projectional radiography</a>
</td></tr></tbody></table>
<a href="//commons.wikimedia.org/wiki/User:Mikael_H%C3%A4ggstr%C3%B6m" title="User:Mikael Häggström">Mikael Häggström</a>
<span class="int-own-work" lang="en">Own work</span>